Barbell Medicine Podcast

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• Menopause, Part 1: What It Actually Is and the 24-Year WHI Correction 29.05.2026 1時間 26分

  In 1889 a French physiologist injected himself with guinea pig and dog testicle extract and published a claim of self-rejuvenation in The Lancet. That announcement kicked off a 200-year medicalization of menopause that ran through leeches and bromides, Premarin, the 2002 Women's Health Initiative, and the contemporary menopause-content space. In Episode 1 of our three-part menopause series, Dr. Jordan Feigenbaum and Dr. Austin Baraki walk through what menopause actually is at the hormonal level, which midlife symptoms are menopause-driven and which are not, the KNDy neuron mechanism behind hot flashes (and the new medication that blocks it), and the 24-year follow-up on the WHI that substantially revised the original conclusions. OB-GYN Dr. Loraine Baraki walks the clinical workup, the lab panel she actually orders, and how she handles patients arriving with DUTCH panels and compounded hormone protocols.If you have heard contradictory things about menopause hormone therapy from your primary care, your menopause coach, and your sister, that is not your fault. The evidence base has been revised in significant ways since the 2002 publication, and most patient-facing summaries are out of date.Timestamps00:00 Cold open: 200 years of menopause medicine03:23 Welcome and roadmap04:20 The HPG axis, follicles, and the FSH lag09:11 STRAW+10 staging and the timing of perimenopause13:47 Austin: the 49-year-old with a hormone panel20:00 Loraine: the OB-GYN workup28:00 Symptom attribution: what menopause actually causes33:46 Austin: the all-estrogen patient37:58 VMS duration and the KNDy mechanism (Avis, SKYLIGHT)43:53 Austin: who actually gets fezolinetant47:22 The WHI 24-year correction (Manson, Chlebowski, Boardman)01:00:15 Modern prescribing today01:06:52 Where the menopause-content space gets it right and wrong01:11:50 Testosterone, compounded bioidenticals, and DUTCH panels01:24:13 TakeawaysWhat we coverThe HPG axis and the estrogen shield: what is happening across the 35-year reproductive era and what changes at perimenopause.STRAW+10 staging: how long perimenopause actually lasts and where most women fall in the timeline. Symptom attribution: hot flashes and genitourinary syndrome are menopause. Weight gain, sleep, and joint pain are mostly other things.The KNDy neuron mechanism behind hot flashes and the new pharmacology that blocks it (fezolinetant, elinzanetant).The Women's Health Initiative: what the trial actually tested, what the 2002 result said, and what 24 years of follow-up have shown since then. The estrogen-alone arm reduced breast cancer incidence by 22% and mortality by 40% over 20 years.The timing hypothesis: hormone therapy started within 10 years of the final menstrual period vs more than 10 years out.Modern prescribing today: transdermal estradiol plus micronized progesterone, and why the formulations matter.Where the contemporary menopause-content space gets it right and wrong: the undertreatment problem, the zone-of-chaos framing, and the testosterone-for-everything marketing.Testosterone in women: one guideline-supported indication.Compounded bioidenticals and DUTCH panels.ResourcesSubscribe to BBM Plus for the full unabridged Direct Line: https://barbellmedicine.supercast.com/Barbell Medicine coaching and templates: https://www.barbellmedicine.com/Signal book pre-order: https://www.barbellmedicine.com/shop/learning/signalManson JE et al. 18-year mortality from the WHI. JAMA, 2017. https://pubmed.ncbi.nlm.nih.gov/28898378/Chlebowski RT et al. WHI estrogen-alone arm at 20 years. JAMA, 2020. https://pubmed.ncbi.nlm.nih.gov/32706854/ Boardman HMP et al. Hormone therapy for cardiovascular prevention. Cochrane, 2015. https://pubmed.ncbi.nlm.nih.gov/25754617/Avis NE et al. Duration of VMS in the SWAN cohort. JAMA Intern Med, 2015. https://pubmed.ncbi.nlm.nih.gov/25686030/Lederman S et al. SKYLIGHT 1, fezolinetant. The Lancet, 2023. https://pubmed.ncbi.nlm.nih.gov/36924778/Johnson KA et al. SKYLIGHT 2, fezolinetant. JCEM, 2023. https://pubmed.ncbi.nlm.nih.gov/37410020/USPSTF. Hormone therapy for primary prevention. JAMA, 2022. https://pubmed.ncbi.nlm.nih.gov/36318127/Davis SR et al. Global Consensus on testosterone in women. JCEM, 2019. https://pubmed.ncbi.nlm.nih.gov/31498871/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Is Creatine Causing Your Shin Pain? + Splitting Training, Endometriosis for Lifters | Direct Line · May 2026 19.05.2026 33分

  This is the free preview of the May 2026 Direct Line, our monthly AMA for Barbell Medicine Plus subscribers. Three reader questions answered in full.We open with a mid-30s woman with bilateral shin pain and exertional foot numbness who started creatine a month ago and is asking whether the supplement is the cause. We walk through the compartment syndrome literature, the 2025 case report being passed around online and misinterpreted, what creatine actually does to total body water (and what it doesn’t), the four compartment pressure studies that exist, the Waterman 2013 demographic data on who actually gets chronic exertional compartment syndrome, and the workup we would actually run if this person walked into clinic.Next, whether splitting your resistance training across the day affects strength and hypertrophy. We cover BBM’s general heuristic on frequency as a distribution tool for training load, the Schoenfeld meta-analyses on frequency (2016 and 2019), the wrinkle on cardiorespiratory fitness and exercise snacks, and where we go off the reservation compared to a strict evidence-based read.We close with endometriosis for the lifter, including the seven-year average diagnostic delay, the 2022 ESHRE guideline shift away from required laparoscopy, what the menstrual cycle and performance literature actually says (McNulty 2020), why the anti-inflammatory diet narrative is mostly noise, the iron and protein levers that matter, post-operative return-to-lifting timelines, the meet-timing question, and Austin’s clinical case walk on supplement stacks and GLP-1 anti-inflammatory effects. A dedicated full episode on endometriosis is coming this summer.The full unabridged Direct Line covers ten more questions, including where the GLP-1 strength trials actually are, why DEXA misleads on muscle mass loss, how we arrived at the Vital 5 weightings, the salt sermon for strongman, running shoes for casual runners, hernias and crunches in older lifters, the Bristol Stool Chart, Austin on coaching his residents, and a fresh reading list. Full episode on BBM Plus.Timestamps:Question 1 · Creatine and shin pain01:2713:21Question 2 · Splitting your workout across the day13:2120:29Question 3 · Endometriosis for the lifter20:29What we cover:The clinical workup for chronic exertional compartment syndrome and why creatine is rarely the culprit. The Schoenfeld frequency literature and why training load matters more than the day it’s distributed across. Endometriosis basics including diagnostic delay, prevalence, and the 2022 ESHRE guideline change. Why most endometriosis “diets” don’t have evidence behind them, and which nutrition levers actually matter (iron, protein, energy availability). Post-operative return to training, meet-timing options, supplement stacks, and the role of GLP-1 receptor agonists in chronic anti-inflammatory effects.Resources:Subscribe to BBM Plus for the full unabridged Direct Line: https://barbellmedicine.supercast.com/Barbell Medicine coaching and templates: https://www.barbellmedicine.com/Signal book pre-order: https://www.barbellmedicine.com/shop/learning/signal/Waterman B.R. et al. 2013. Risk factors for chronic exertional compartment syndrome in a physically active military population. Am J Sports Med 41(11):2545-2552.https://pubmed.ncbi.nlm.nih.gov/24036570/Powers M.E. et al. 2003. Creatine supplementation increases total body water without altering fluid distribution. J Athl Train 38(1):44-50.https://pubmed.ncbi.nlm.nih.gov/12937471/Antonio J. et al. 2021. Common questions and misconceptions about creatine supplementation (ISSN position). J Int Soc Sports Nutr 18(1):13.https://pubmed.ncbi.nlm.nih.gov/33557850/Bruneau A. et al. 2025. Creatine supplementation associated with chronic exertional compartment syndrome: case report. [TO ADD: PMID once indexed]Schoenfeld B.J. et al. 2016. Effects of resistance training frequency on measures of muscle hypertrophy: a systematic review and meta-analysis. Sports Med 46(11):1689-1697.https://pubmed.ncbi.nlm.nih.gov/27102172/Schoenfeld B.J. et al. 2019. How many times per week should a muscle be trained to maximize hypertrophy? J Sports Sci 37(11):1286-1295.https://pubmed.ncbi.nlm.nih.gov/30558493/ESHRE Endometriosis Guideline Development Group. 2022. ESHRE guideline: endometriosis. Hum Reprod Open 2022(2):hoac009.https://pubmed.ncbi.nlm.nih.gov/35350465/McNulty K.L. et al. 2020. The effects of menstrual cycle phase on exercise performance in eumenorrheic women: systematic review and meta-analysis. Sports Med 50(10):1813-1827.https://pubmed.ncbi.nlm.nih.gov/32661839/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• What’s Actually Driving Your Testosterone Down? | Signal Ep 3 12.05.2026 59分

  Most cases of low testosterone in modern men are not a problem with the testes. The number is downstream of body composition, sleep, and energy availability. The wellness-clinic algorithm walks past every one of them.Jordan and Austin walk through what actually drives men’s testosterone down, the mechanisms behind it, and the modifiable levers that bring it back up. MOSH, the leptin and Kisspeptin pathway, the aromatase loop, the sleep apnea picture most clinics never ask about, the GLP-1 and weight-loss data on testosterone recovery, the low energy availability case that hits high-volume lifters harder than they realize, and the closing question of when a standard-dose TRT prescription actually functions as a PED.This is Episode 3 of our four-part Signal book launch series. Mark, the patient we have been threading from Episode 1, finally gets his diagnosis revealed.Timestamps00:00 The 9x stat and Mark's diagnosis revealed 02:10 How body fat suppresses testosterone (MOSH) 07:26 Primary vs secondary causes, and Klinefelter 11:35 Leptin and the Kisspeptin pathway 14:38 Mark: the body-composition picture 16:10 The 40-inch-waist case 20:01 Weight loss, GLP-1s, and does Ozempic raise testosterone? 24:21 T4DM: adding testosterone to lifestyle 28:35 Sleep, OSA, and Mark's diagnosis 38:39 TRT in untreated sleep apnea 41:47 Can you train your testosterone down? (LEA / EHMC) 50:12 Replacement dose vs PED 55:47 Four takeaways 57:46 Episode 4 preview and book pre-orderWhat we cover:•         How body fat suppresses testosterone at two different points in the HPG axis, and why the loop is self-reinforcing•         The leptin and Kisspeptin pathway most clinics never address•         Mark’s case: a 45-year-old with a 240 ng/dL afternoon draw, no workup, and an immediate prescription•         Primary versus secondary causes, and why Klinefelter syndrome is the under-recognized one to not miss•         Weight loss dose-response: how much testosterone climbs on lifestyle alone, with GLP-1 agonists, and after bariatric surgery•         T4DM: why adding testosterone to a structured weight-loss program produced no extra quality-of-life benefit over placebo•         One week of sleep restriction drops testosterone by about 15 percent in healthy young men; eight days of military field exercises drop it by 50 percent•         Why CPAP for obstructive sleep apnea reliably improves symptoms but does not always move the lab number•         The opposite extreme: low energy availability, relative energy deficiency in sport, and the exercise-hypogonadal male condition•         The lifter calculus: when a textbook replacement dose is functionally a PED in a chronically underfueled traineeResources mentioned:Signal book pre-order: https://barbellmedicine.com/signal Training Plateau Action Plan (free): https://www.barbellmedicine.com/training-plateau-action-plan/ Barbell Medicine programs and coaching: https://www.barbellmedicine.com/ Episode 1 (Is the Testosterone Crisis Real?) Episode 2 (Is Your Testosterone Actually Low?Referenced studies:Wu F.C.W. et al. 2010. Identification of late-onset hypogonadism in middle-aged and elderly men (EMAS). N Engl J Med 363(2):123-135. https://pubmed.ncbi.nlm.nih.gov/20554979/  Travison T.G. et al. 2011. The natural history of symptomatic androgen deficiency in men. J Am Geriatr Soc. https://pubmed.ncbi.nlm.nih.gov/18454751/  Corona G. et al. 2013. Body weight loss reverts obesity-associated hypogonadotropic hypogonadism: systematic review and meta-analysis. Eur J Endocrinol 168(6):829-843. https://pubmed.ncbi.nlm.nih.gov/23482592/  Kounatidis D. et al. 2025. The impact of GLP-1 receptor agonists on erectile function. Biomolecules 15(9):1284. https://doi.org/10.3390/biom15091284  Grossmann M. et al. 2024. Testosterone treatment, weight loss, and health-related quality of life and psychosocial function in men: 2-year RCT (T4DM QoL arm). J Clin Endocrinol Metab 109(8):2019-2028. https://pubmed.ncbi.nlm.nih.gov/38311835/  Leproult R., Van Cauter E. 2011. Effect of 1 week of sleep restriction on testosterone levels in young healthy men. JAMA 305(21):2173-2174. https://pubmed.ncbi.nlm.nih.gov/21632481/  Penev P.D. 2007. Association between sleep and morning testosterone levels in older men. Sleep 30(4):427-432. https://pubmed.ncbi.nlm.nih.gov/17520785/  Wittert G. 2014. The relationship between sleep disorders and testosterone in men. Asian J Androl 16(2):262-265. https://pubmed.ncbi.nlm.nih.gov/24435056/  Alemany J.A. et al. 2008. Effects of dietary protein content on IGF-I, testosterone, and body composition during 8 days of severe energy deficit and arduous physical activity. J Appl Physiol 105(1):58-64. https://pubmed.ncbi.nlm.nih.gov/18450989/  Mountjoy M., Sundgot-Borgen J.K., Burke L.M. et al. 2018. IOC consensus statement on relative energy deficiency in sport (RED-S): 2018 update. Br J Sports Med 52:687-697. https://pubmed.ncbi.nlm.nih.gov/29773536/  Areta J.L. et al. 2021. Low energy availability: history, definition and evidence of its endocrine, metabolic and physiological effects in prospective studies in females and males. Eur J Appl Physiol 121(1):1-21. https://pubmed.ncbi.nlm.nih.gov/33095376/  Mäestu J. et al. 2010. Anabolic and catabolic hormones and energy balance of the male bodybuilders during the preparation for the competition. J Strength Cond Res 24(4):1074-1081. https://pubmed.ncbi.nlm.nih.gov/20300023/  Hooper D.R. et al. 2018. Treating exercise-associated low testosterone (EHMC). Phys Sportsmed 46(4):427-434. https://pubmed.ncbi.nlm.nih.gov/30074435/  Hackney A.C. 2020. Hypogonadism in exercising males: dysfunction or adaptive-regulatory adjustment? Front Endocrinol 11:11. https://pubmed.ncbi.nlm.nih.gov/32082252/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Progressive Loading Part 3: Why the Novice / Intermediate / Advanced Framework Doesn't Work, and What to Do Instead 05.05.2026 1時間 51分

  Three weeks of stalled squats. The conventional answer is to switch programs because you've crossed into intermediate territory. The data says something else. In Part 3 of the Progressive Loading series, Dr. Jordan Feigenbaum and Dr. Austin Baraki walk through why the standard novice / intermediate / advanced framework runs into trouble in real training, what the four adaptive systems are actually doing across a training career, and why most of what gets called a stall is impatience with the noise floor at your current strength level.This is Part 3 of the Progressive Loading series. Part 1 covered why loading should react to demonstrated adaptation. Part 2 covered RPE-based autoregulation and the artificial-momentum approach. Today is the mechanism layer.Pre-order our book, Signal: barbellmedicine.com/signalTimestamps0:00 - Why your lifts aren't moving1:52 - The novice / intermediate / advanced framework, three claims to test13:23 - What 17 years of powerlifting data show about how long you keep getting stronger32:28 - How getting stronger actually works (four systems on four clocks)38:00 - What early growth is actually made of (the Damas 2016 deuterium study)50:33 - The connective tissue lag and why early-training injuries happen58:32 - Why heavy lifting works for bone density (and why "walk on a treadmill" advice misses)1:05:10 - Why new lifters get hurt 3 to 10 times more than experienced lifters1:12:56 - Fatigue is at least four different things (and most coaches treat it as one)1:26:19 - The CNS fatigue myth (and what the data actually says)1:33:52 - When the bar isn't moving: how to actually diagnose a stall1:45:51 - Takeaways and next week's tease: leptin and low testosteroneWhat we cover - The novice / intermediate / advanced framework: three claims and why each one fails the data test- The 17-year IPF strength curve and what the no-kink finding does and does not establish (Latella 2024)- The four adaptive systems and their separate timescales (neural, muscle, connective tissue, bone)- What early growth actually is, including the deuterium-oxide finding that most week-3 size is fluid (Damas 2016)- Why connective tissue lags muscle by six to eight weeks, and why that produces patellar tendinopathy four months in- The 9.5 vs 0.74 to 3.3 injury rate gap between novice and experienced CrossFit participants- The CNS fatigue myth and the Skarabot 2018 finding that locates the fatigue in the muscle, not the brain- Why the LIFTMOR trial result (heavy lifting for bone density in women in their 60s and 70s) is being missed by primary care- A practical decision tree for stalls: environment first, then load, then program- Tease for next week: leptin, the HPG axis, and the metabolic driver of low testosterone almost nobody connectsResources Training Plateau Action Plan (free): https://www.barbellmedicine.com/training-plateau-action-plan/Progressive Loading article series: https://www.barbellmedicine.com/blog/progressive-loading/Beyond Progressive Overload (Part 2 article): https://www.barbellmedicine.com/blog/beyond-progressive-overload/BBM Programs and Coaching: https://www.barbellmedicine.com/Support our work on barbellmedicine.supercast.comLatella C et al. Using powerlifting athletes to determine strength adaptations across ages in males and females. Sports Med. 2024. https://pubmed.ncbi.nlm.nih.gov/Del Vecchio A et al. The increase in muscle force after 4 weeks of strength training is mediated by adaptations in motor unit recruitment and rate coding. J Physiol. 2019. https://pubmed.ncbi.nlm.nih.gov/30644584/Lecce E et al. Resistance training-induced adaptations in the neuromuscular system. J Physiol. 2025.Balshaw TG et al. Neural adaptations after 4 years vs 12 weeks of resistance training. Scand J Med Sci Sports. 2019. https://pubmed.ncbi.nlm.nih.gov/30474171/Skarabot J et al. Voluntary activation and agonist EMG amplitude in resistance-trained men. J Appl Physiol. 2021.Roberts MD et al. Mechanisms of mechanical overload-induced skeletal muscle hypertrophy. Physiol Rev. 2023.Damas F et al. Resistance training-induced changes in integrated myofibrillar protein synthesis are related to hypertrophy only after attenuation of muscle damage. J Physiol. 2016. https://pubmed.ncbi.nlm.nih.gov/27219125/Damas F et al. Early resistance training-induced increases in muscle cross-sectional area are concomitant with edema-induced muscle swelling. Eur J Appl Physiol. 2016. https://pubmed.ncbi.nlm.nih.gov/26280652/Lazarczuk SL et al. Mechanical, material and morphological adaptations of healthy lower limb tendons. Sports Med. 2022. https://pubmed.ncbi.nlm.nih.gov/35657492/Kubo K et al. Time course of changes in the human Achilles tendon properties. Eur J Appl Physiol. 2012. https://pubmed.ncbi.nlm.nih.gov/22105708/Watson SL et al. High-intensity resistance and impact training improves bone mineral density in postmenopausal women: the LIFTMOR randomized controlled trial. J Bone Miner Res. 2018. https://pubmed.ncbi.nlm.nih.gov/28975661/Aasa U et al. Injuries among weightlifters and powerlifters: a systematic review. Br J Sports Med. 2017. https://pubmed.ncbi.nlm.nih.gov/27445362/Prieto-Gonzalez P et al. Injuries in novice participants during an eight-week start-up CrossFit program. Int J Environ Res Public Health. 2020. https://pubmed.ncbi.nlm.nih.gov/32155747/Kanayama G et al. Tendon rupture in body builders. Sports Med. 2015.Enoka RM, Duchateau J. Translating fatigue to human performance. Med Sci Sports Exerc. 2016. https://pubmed.ncbi.nlm.nih.gov/27015386/Behrens M et al. Fatigue and human performance: an updated framework. Sports Med. 2023. https://pubmed.ncbi.nlm.nih.gov/Halperin I et al. Accuracy in predicting repetitions to task failure: scoping review. Sports Med. 2022. https://pubmed.ncbi.nlm.nih.gov/Skarabot J et al. Neuromuscular fatigue and recovery after heavy resistance, jump, and sprint training. Eur J Appl Physiol. 2018.Garcia-Ramos A et al. Greater neuromuscular and perceptual fatigue after low-load to failure than heavy-load to failure. 2024.Minor, Brian MS, CSCS1; Helms, Eric PhD, CSCS2; Schepis, Jacob3. RE: Mesocycle Progression in Hypertrophy: Volume Versus Intensity. Strength and Conditioning Journal 42(5):p 121-124, October 2020. | DOI: 10.1519/SSC.0000000000000581Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Is Your Testosterone Actually Low? Why Higher Testosterone Doesn't Do What You Think | Signal Ep 2 28.04.2026 1時間 1分

  Out of 32 symptoms commonly attributed to low testosterone, only 3 actually correlate with it. All three are sexual. The other 29 — fatigue, brain fog, low mood, weight you can't lose, feeling not quite like yourself — are real, but they are produced by something else, and the wellness-clinic funnel runs on getting that wrong. Episode 2 of our Signal book launch series. Dr. Jordan Feigenbaum and Dr. Austin Baraki cover how testosterone actually works, what the number on your lab report is really measuring, and what a real evaluation of low T looks like.Pre-order our book, Signal: barbellmedicine.com/signalTimestamps:00:00 Mark, revisited (cold open)02:00 How testosterone actually works (HPG axis)06:14 Why "in range" can still be abnormal09:24 What your lab number actually measures12:25 Case: total 230, low SHBG — does this guy need TRT?17:04 The saturation model — why higher isn't better21:11 A patient at 480 wants 900: how the conversation goes28:57 What "in range" actually means (and why 264 is the cutoff)34:41 The 3 symptoms that matter (out of 32)37:16 Walking back a 10-symptom checklist42:31 How a real testosterone workup gets done46:42 Chasland trial — TRT vs. exercise at low-normal T49:31 A warning for hard-training men58:48 Takeaways, tease, and what's coming next What we cover:The HPG axis explained — and why one low total testosterone reading tells you almost nothing about where the problem actually sits.The difference between total, free, and bioavailable testosterone — and why SHBG, the binding protein the wellness-clinic workup almost always ignores, is what determines whether the number on your lab report is misleading you in either direction.The saturation model: above roughly 250 ng/dL, the prostate androgen receptor is saturated. Libido follows the same plateau. Pushing a normal man from 500 to 900 isn't doing what the marketing implies.The EMAS study finding: of 32 symptoms men commonly attribute to low testosterone, only 3 actually correlate. Every other symptom needs a different workup.How a real testosterone workup gets done — morning sample, fasted, repeat draw, LH/FSH/SHBG to localize and contextualize.The Chasland 2021 trial: when standard TRT is prescribed properly to middle-aged men with low-normal levels, does it beat exercise? The answer is what most of the wellness-clinic industry is built on getting wrong.A note for hard-training men: the exercise-hypogonadal-male pattern, what "low-normal" means in someone whose levels are an adaptation to training load rather than a baseline deficit, and why a textbook TRT dose in that man may functionally act as a performance enhancer.If you have a lab report on your kitchen counter right now, this is what we wrote for you. Signal, the book, drops in May. Pre-order available soon at barbellmedicine.com.Resources & linksSignal — Feigenbaum & Baraki (Barbell Medicine, 2026): coming soonEpisode 1 (Is the Testosterone Crisis Real?): https://stream.redcircle.com/episodes/b25a8006-57e5-4dc3-b74c-203f6fbcebc1/stream.mp3Training Plateau Action Plan (free): barbellmedicine.com/training-plateau-action-planBarbell Medicine programs and consultations: barbellmedicine.comTo support us and get ad free listening, plus special product discounts, and exclusive content, go to supercast.barbellmedicine.comReferenced studiesWu FCW et al. 2010 - Identification of late-onset hypogonadism in middle-aged and elderly men. NEJM 363(2):123-135. [The EMAS 3-of-32 finding]https://pubmed.ncbi.nlm.nih.gov/20554979/Bhasin S et al. 2018 - Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. JCEM 103(5):1715-1744. [264 ng/dL threshold; first-draw protocol]https://pubmed.ncbi.nlm.nih.gov/29562364/Travison TG et al. 2008 - The natural history of symptomatic androgen deficiency in men. JAGS 56(5):831-839. [MMAS: ~50% of initially low values normalize on repeat]https://pubmed.ncbi.nlm.nih.gov/18308002/Travison TG et al. 2006 - The relationship between libido and testosterone levels in aging men. JCEM 91(7):2509-2513. [Libido plateau data, Framingham + HIM]https://pubmed.ncbi.nlm.nih.gov/16670164/Brambilla DJ et al. 2009 - The effect of diurnal variation on clinical measurement of serum testosterone. JCEM 94(3):907-913. [Why morning, fasted matters]https://pubmed.ncbi.nlm.nih.gov/19112025/Morgentaler A & Traish AM. 2009 - Shifting the paradigm of testosterone and prostate cancer: the saturation model and the limits of androgen-dependent growth. Eur Urol 55(2):310-320. [The saturation model]https://pubmed.ncbi.nlm.nih.gov/18838208/Trost LW & Mulhall JP. 2016 - Challenges in Testosterone Measurement, Data Interpretation, and Methodological Appraisal of Interventional Trials. J Sex Med 13(7):1029-1046. [Free T unreliability at the low end; equilibrium dialysis as the reference method]https://pubmed.ncbi.nlm.nih.gov/27210182/Vermeulen A et al. 1999 - A critical evaluation of simple methods for the estimation of free testosterone in serum. JCEM 84(10):3666-3672. [Calculated free T methodology]https://pubmed.ncbi.nlm.nih.gov/10523012/Chasland LC et al. 2021 - Testosterone and exercise: effects on fitness, body composition, and strength in middle-to-older aged men with low-normal serum testosterone levels. Am J Physiol Heart Circ Physiol 320(5):H1985-H1998. [The 12-week trial]https://pubmed.ncbi.nlm.nih.gov/33739153/Arun AS et al. 2025 - Reevaluating the Threshold for Low Total Testosterone. Clin Chem 71(5):609-611. [2025 NHANES strength-dissociation reference]https://pubmed.ncbi.nlm.nih.gov/40066943/Baillargeon J et al. 2015 - Trends in Androgen Prescribing in the United States, 2001-2011. JAMA Intern Med 175(8):1413-1415. [25% no preceding lab; the 50% no follow-up monitoring gap - referenced from Episode 1]https://pubmed.ncbi.nlm.nih.gov/26075486/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Direct Line April 2026: Stopping Ozempic and Lifting With Osteopenia 21.04.2026 38分

  Stop a GLP-1 and about two thirds of the weight loss comes back within a year. Three randomized withdrawal trials (SURMOUNT-4, STEP 1 extension, STEP 4) and a new BMJ 2026 systematic review of 37 RCTs and nearly 10,000 adults all land on the same signal. The cardiometabolic benefits, blood pressure, fasting glucose, lipids, drift back in parallel with the weight. The framing that actually fits the data: GLP-1s behave like a statin. There is a cumulative benefit during exposure, but this does not extend indefinitely,This month's Direct Line covers two subscriber questions. The first asks what the new BMJ paper on GLP-1 cardiovascular protection after cessation actually shows, and how GLP-1 durability compares to lifestyle-only interventions. The second asks how a postmenopausal woman newly diagnosed with osteopenia should structure her lifting.Studies referenced: SURMOUNT-4 (Jastreboff, JAMA 2024), STEP 1 extension (Wilding, Diabetes Obes Metab 2022), STEP 4 (Rubino, JAMA 2021), West et al. BMJ 2026 systematic review, Budini 2026 eClinicalMedicine regain meta-analysis, SELECT cardiovascular outcomes, FLOW renal outcomes, the Diabetes Prevention Program, Look AHEAD, POUNDS Lost, and LIFTMOR (Watson, JBMR 2018).Full episode on BBM+ covers 8 additional subscriber questions. Join at https://barbellmedicine.supercast.com/Timestamps0:00 Intro1:52 Q1: What happens when you stop a GLP-15:33 Lifestyle-only comparators: DPP, Look AHEAD, POUNDS Lost8:15 Austin on the cessation conversation 12:41 BMJ 2026: weight and cardiometabolic regression17:59 The statin framing23:41 Austin: first 6 months off GLP-128:07 Q2: Osteopenia and heavy lifting35:28 LIFTMOR protocol38:00 OutroNext StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.comResourcesAronne, Louis J., et al. "Continued Treatment With Tirzepatide for Maintenance of Weight Reduction in Adults With Obesity: The SURMOUNT-4 Randomized Clinical Trial." JAMA, vol. 331, no. 1, 2024, pp. 38–48. https://jamanetwork.com/journals/jama/fullarticle/2812936Wilding, John P. H., et al. "Weight Regain and Cardiometabolic Effects After Withdrawal of Semaglutide: The STEP 1 Trial Extension." Diabetes, Obesity and Metabolism, vol. 24, no. 8, Aug. 2022, pp. 1553–1564. https://dom-pubs.onlinelibrary.wiley.com/doi/10.1111/dom.14725Rubino, Domenica, et al. "Effect of Continued Weekly Subcutaneous Semaglutide vs Placebo on Weight Loss Maintenance in Adults With Overweight or Obesity: The STEP 4 Randomized Clinical Trial." JAMA, vol. 325, no. 14, 2021, pp. 1414–1425. https://jamanetwork.com/journals/jama/fullarticle/2777886West, Sam, et al. "Weight Regain After Cessation of Medication for Weight Management: Systematic Review and Meta-Analysis." BMJ, vol. 392, 7 Jan. 2026, article e085304. https://www.bmj.com/content/392/bmj-2025-085304Budini, Brajan, et al. "Trajectory of Weight Regain After Cessation of GLP-1 Receptor Agonists: A Systematic Review and Nonlinear Meta-Regression." eClinicalMedicine, vol. 93, 4 Mar. 2026, article 103796. https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(26)00043-X/fulltextLincoff, A. Michael, et al. "Semaglutide and Cardiovascular Outcomes in Obesity Without Diabetes." New England Journal of Medicine, vol. 389, no. 24, 11 Nov. 2023, pp. 2221–2232. https://www.nejm.org/doi/full/10.1056/NEJMoa2307563Perkovic, Vlado, et al. "Effects of Semaglutide on Chronic Kidney Disease in Patients with Type 2 Diabetes." New England Journal of Medicine, vol. 391, no. 2, 24 May 2024, pp. 109–121. https://www.nejm.org/doi/full/10.1056/NEJMoa2403347Knowler, William C., et al. "Reduction in the Incidence of Type 2 Diabetes with Lifestyle Intervention or Metformin." New England Journal of Medicine, vol. 346, no. 6, 7 Feb. 2002, pp. 393–403. https://www.nejm.org/doi/full/10.1056/NEJMoa012512Look AHEAD Research Group. "Cardiovascular Effects of Intensive Lifestyle Intervention in Type 2 Diabetes." New England Journal of Medicine, vol. 369, no. 2, 11 July 2013, pp. 145–154. https://www.nejm.org/doi/full/10.1056/NEJMoa1212914Sacks, Frank M., et al. "Comparison of Weight-Loss Diets with Different Compositions of Fat, Protein, and Carbohydrates." New England Journal of Medicine, vol. 360, no. 9, 26 Feb. 2009, pp. 859–873. https://www.nejm.org/doi/full/10.1056/NEJMoa0804748Watson, Shelley L., et al. "High-Intensity Resistance and Impact Training Improves Bone Mineral Density and Physical Function in Postmenopausal Women With Osteopenia and Osteoporosis: The LIFTMOR Randomized Controlled Trial." Journal of Bone and Mineral Research, vol. 33, no. 2, 2018, pp. 211–220. https://onlinelibrary.wiley.com/doi/10.1002/jbmr.3284Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Is the Testosterone Crisis Real? The Numbers Behind the Headlines | Signal Ep 1 14.04.2026 40分

  A quarter of men start testosterone without a single lab test. Most boosters don't work. And the "testosterone crisis" headline is half testing artifact, half waistline. Two physicians walk through what the data actually shows. Our Sponsors: * Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me * Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com * Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com * Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.com Advertising Inquiries: https://redcircle.com/brands
• Medical Mystery: The Man Who Got Weaker When He Started Training 07.04.2026 1時間 15分

  A 43-year-old man starts exercising and ends up in the ER with a CK over 100x the upper limit of normal. His doctor says it’s from training. We don’t think so. In this episode, Dr. Jordan Feigenbaum and Dr. Austin Baraki walk through the full case — history, labs, diagnosis, and what actually went wrong — then break down the mechanisms behind the answer, the nocebo research, and what the brand-new 2026 guidelines mean for the 40 million Americans on a drug class you’ve definitely heard of.We also cover the STOMP trial (do statins actually impair strength gains?), the SAMSON trial (how much of statin intolerance is nocebo?), the difference between myalgia, myositis, and rhabdomyolysis, Austin’s clinical approach to a patient whose strength is declining on a statin, and the treatment escalation pathway for statin-intolerant patients including bempedoic acid, PCSK9 inhibitors, and inclisiran. Plus, where GLP-1 receptor agonists like tirzepatide fit into the cardiovascular risk picture.Timestamps0:00 — A 43-year-old man is getting weaker, not stronger2:09 — Taking the history: Medications, lifestyle, and red flags12:53 — The labs come back: CK at 18,97916:05 — Metabolic syndrome and the modern treatment approach23:15 — Rhabdomyolysis: What it is and why it’s dangerous29:50 — Final diagnosis and what went wrong with the medications37:15 — 2026 ACC lipid guidelines: What changed40:32 — Three mechanisms: How statins affect muscle47:02 — The nocebo effect and the SAMSON trial54:17 — Do statins impair training? The STOMP trial1:00:30 — Who’s at highest risk for statin muscle problems1:07:36 — What happened to the patient and options if this is you1:14:12 — Five takeawaysFive Takeaway Statin myopathy is real but relatively uncommon. The excess symptom rate above placebo is roughly 1–5% in controlled trials. But in exercising patients, especially on combination therapy, the risk can be higher.There are three proposed mechanisms: reduced energy production from CoQ10 depletion, compromised muscle cell membranes from isoprenoid loss, and accelerated protein breakdown from calcium leak via the ryanodine receptor. Exercise amplifies all three, but the vast majority of people compensate.If you’re on a statin and your strength is going down, talk to your doctor before stopping the medication or changing your training. A CK test can help separate a drug problem from a programming problemThe 2026 ACC guidelines list vigorous exercise as a risk factor for statin-associated muscle symptoms for the first time. They also provide statin-intolerant patients a clear escalation pathway: bempedoic acid, ezetimibe, PCSK9 inhibitors, and more.Lower is better for LDL. There’s a 33% relative reduction in cardiovascular events at <55 vs. 70 mg/dL. Lower for longer. Healthy lifestyle changes plus effective lipid-lowering therapy are among the best things you can do for cardiovascular risk.Next StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.comTo support us and get ad free listening, plus special product discounts, and exclusive content, go to supercast.barbellmedicine.com ResourcesTraining Plateau Action Plan (free):https://www.barbellmedicine.com/training-plateau-action-plan/Fish oil episode:https://open.spotify.com/episode/4kRtXZBMZWKkZPDdIKpu1SLp(a): https://www.barbellmedicine.com/blog/lipoprotein-a-testing-and-treatment/GuidelinesBlumenthal RS, Morris PB, et al. 2026 ACC/AHA Guideline on the Management of Dyslipidemia. Circulation. 2026. DOI: 10.1161/CIR.0000000000001423CaseLászló A, et al. Exercise and Statin-Fibrate Combination Therapy-Caused Myopathy. BMC Research Notes. 2013;6:52. https://pubmed.ncbi.nlm.nih.gov/23388500/ LDL TargetsLee YJ, et al. (Ez-PAVE) Intensive LDL Cholesterol Targeting in Atherosclerotic Cardiovascular Disease. NEJM. 2026. PMID: 41910315Mechanisms of Statin MyopathyMeador BM, Huey KA. Statin-Associated Myopathy and Its Exacerbation with Exercise. Muscle Nerve. 2010;42(4):469–479. https://pubmed.ncbi.nlm.nih.gov/20878737/Safitri N, et al. Statin-Induced Rhabdomyolysis: Mechanisms, Risk Factors, Management. Drug Healthc Patient Saf. 2021. https://pmc.ncbi.nlm.nih.gov/articles/PMC8593596/Molinarolo S, et al. Cryo-electron microscopy reveals sequential binding and activation of Ryanodine Receptors by statin triplets. Nat Commun. 2025;16(1):11508. doi:10.1038/s41467-025-66522-0Thompson PD, et al. Lovastatin Increases Exercise-Induced Skeletal Muscle Injury. Metabolism. 1997;46(10):1206–1210Nocebo Effect and Statin IntoleranceWood FA, et al. N-of-1 Trial of a Statin, Placebo, or No Treatment to Assess Side Effects (SAMSON). NEJM. 2020;383(22):2182–2184. https://pmc.ncbi.nlm.nih.gov/articles/PMC8453640/Khan S, et al. Does Googling Lead to Statin Intolerance? Int J Cardiol. 2018;262:25–27. https://pubmed.ncbi.nlm.nih.gov/29706390/Gupta A, et al. Adverse Events Associated with Unblinded, but Not with Blinded, Statin Therapy in the ASCOT-LLA. Lancet. 2017;389(10088):2473–2481. https://pubmed.ncbi.nlm.nih.gov/28476288/Moon JC, et al. Examining the Nocebo Effect of Statins through the FDA AERS. Circ Cardiovasc Qual Outcomes. 2021;14(1):e007480. https://pubmed.ncbi.nlm.nih.gov/33161769Statins and Exercise OutcomesParker BA, et al. Effect of Statins on Skeletal Muscle Function (STOMP). Circulation. 2013;127(1):96–103. https://pubmed.ncbi.nlm.nih.gov/23183941/Parker BA, Thompson PD. Effect of Statins on Skeletal Muscle: Exercise, Myopathy, and Muscle Outcomes. Exerc Sport Sci Rev. 2012;40(4):188–194. https://pmc.ncbi.nlm.nih.gov/articles/PMC3463373/Mikus CR, et al. Simvastatin Impairs Exercise Training Adaptations. JACC. 2013;62(8):709–714. https://pubmed.ncbi.nlm.nih.gov/23583255/Slade JM, et al. The Impact of Statin Therapy and Aerobic Exercise Training. Am Heart J Plus. 2021;10:100028. https://pmc.ncbi.nlm.nih.gov/articles/PMC8477381/Gui Y, et al. Efficacy and Safety of Statins and Exercise Combination Therapy. Eur J Prev Cardiol. 2017;24(9):907–916. DOI: 10.1177/2047487317691874 Genetic SusceptibilitySEARCH Collaborative Group. SLCO1B1 Variants and Statin-Induced Myopathy — A Genomewide Study. NEJM. 2008;359(8):789–799Autoimmune MyopathyBarkhordarian M, et al. Statin-Induced Autoimmune Myopathy. Am J Case Rep. 2024;25:e944261. https://pubmed.ncbi.nlm.nih.gov/39219126/Statin-Fibrate InteractionsJones PH, Davidson MH. Reporting Rate of Rhabdomyolysis with Fenofibrate + Statin vs Gemfibrozil + Any Statin. Am J Cardiol. 2005;95(1):120–122Bruckert E, et al. Mild to Moderate Muscular Symptoms with High-Dosage Statin Therapy (PRIMO Study). Cardiovasc Drugs Ther. 2005;19(6):403–414Sinzinger H, O’Grady J. Professional Athletes Suffering from Familial Hypercholesterolaemia Rarely Tolerate Statin Treatment. Br J Clin Pharmacol. 2004;57(4):525–528Tirzepatide and GLP-1 AgonistsAl-kuraishy HM, et al. The mechanistic role of tirzepatide in atherosclerosis. Int J Biol Macromol. 2025;329(1). https://doi.org/10.1016/j.ijbiomac.2025.147734Effects of Tirzepatide on Lipid Profile: A Systematic Review and Meta-Analysis. 2024. https://pmc.ncbi.nlm.nih.gov/articles/PMC11704219/Hamidi H, et al. Effect of tirzepatide on coronary atherosclerosis progression (T-Plaque trial design). Am Heart J. 2024;278:24–32. doi:10.1016/j.ahj.2024.08.015Fish Oil and Omega-3 Fatty AcidsBhatt DL, et al. Cardiovascular Risk Reduction with Icosapent Ethyl (REDUCE-IT). NEJM. 2019;380:11–22. https://pubmed.ncbi.nlm.nih.gov/30415628/Abdelhamid AS, et al. Omega-3 Fatty Acids for Prevention of Cardiovascular Disease. Cochrane Database Syst Rev. 2020. https://pubmed.ncbi.nlm.nih.gov/32114706/Manson JE, et al. Marine n-3 Fatty Acids and Prevention of CVD and Cancer (VITAL). NEJM. 2019;380:23–32. https://pubmed.ncbi.nlm.nih.gov/30415637/ Myopathy ClassificationSelva-O’Callaghan A, et al. Statin-Induced Myalgia and Myositis: Pathogenesis and Clinical Recommendations. Expert Rev Clin Immunol. 2018;14(3):215–224. https://pmc.ncbi.nlm.nih.gov/articles/PMC6019601/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Overtraining Syndrome: Causes, Diagnosis, and What's Actually Going On 31.03.2026 1時間 36分

  In 2022, researchers conducted the most rigorous systematic review ever performed on overtraining syndrome — looking specifically for controlled studies that documented a human transitioning from a healthy training state to an overtrained state. Zero studies met those criteria. The word "overtrained" appears in coaching certifications, wearable device dashboards, and clinical sports medicine guidelines — and in each context it means something different. That definitional chaos has consequences: it delays real diagnoses, produces nocebo effects with measurable physiological outcomes, and leads athletes to reduce training they didn't need to reduce.In this episode, Drs. Jordan Feigenbaum and Austin Baraki work through the full evidence base on overtraining syndrome — the taxonomy, the attempted studies, the six competing mechanistic theories, the biomarker failures, and what's actually happening when a lifter can't make progress. Timestamps:0:00 Cold open — the zero-studies finding1:21 Why "overtrained" does four different jobs simultaneously16:10 The FOR / NFOR / OTS taxonomy19:43 The supercompensation model — borrowed from endurance, never validated for resistance training32:28 Austin's clinical differential for fatigue and declining performance36:17 RT evidence — what happens when researchers try to induce OTS through lifting43:19 Austin — what actually drives the complaints he sees in practice47:30 Six theories for what causes overtraining syndrome1:01:09 The biomarker problem — why the T:C ratio and cortisol don't work1:05:09 What your wearable is actually measuring (and what it isn't)1:09:28 Austin — testosterone levels in trained athletes and when to act1:13:40 Heart rate variability — limitations for strength training1:15:36 Session RPE — the monitoring tool that actually works1:17:31 How common is overtraining syndrome, really?1:23:04 Three failure modes — what's actually happening when lifters say they feel overtrained1:32:14 Austin — what a proper medical workup looks like1:34:22 OutroWhat we cover:The definition problem — why a single word is doing four incompatible jobs simultaneously, and why that matters clinically and practically.The taxonomy — functional overreaching, nonfunctional overreaching, and overtraining syndrome as points on a continuous variable that can only be identified after the fact, not at presentation.The supercompensation model — where it came from, why it fails to describe how resistance training adaptation actually works, and how applying it too literally produces both overloading and underloading errors at the same time.Austin's clinical differential — what a physician actually works through when a patient presents with fatigue and declining performance, and where overtraining syndrome actually sits on that list.What resistance training research shows — including 140 maximal singles, 90 working sets per week, and daily 1-rep max attempts. No study has cleanly induced overtraining syndrome through resistance training. The hormonal data went in the opposite direction from what the endurance overtraining model predicts.Six mechanistic theories — glycogen depletion, serotonin/BCAA, autonomic imbalance, central governor, HPA axis dysregulation, and Armstrong's complex systems framework. Each one is partially supported and each falls short.The biomarker problem — resting cortisol is normal in 75%+ of OTS cases, the testosterone to cortisol ratio has never been validated against clinical outcomes as an individual diagnostic, and HRV recovery in strength training lags physical recovery by up to 30 hours.Austin on wearables — including a clinical pattern he's seeing with GLP-1 receptor agonists: wearable scores indicating deterioration when the clinical picture is actually fine.Session RPE as the real tool — why session RPE trending upward at stable training load is a more reliable signal of load-recovery mismatch than any biomarker currently used.Prevalence and confounders — the 60% figure, why it almost certainly captures all three FOR/NFOR/OTS categories plus REDS, depression, and illness, and why the residual true training-load-induced OTS in an otherwise healthy athlete may be vanishingly rare.Three failure modes — the three things Jordan actually sees in practice when lifters present saying they feel overtrained, and how to distinguish between them using session RPE.The medical workup — Austin's practical walkthrough of what to assess when programming and lifestyle changes don't move the needle, including iron deficiency (ferritin testing caveats, lab reference range problems), sleep apnea, post-viral syndromes, and hormone panels done correctly.Next Steps:For evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.comFor ad free listening and exclusive discounts, become a Barbell Medicine Plus subscriber at https://barbellmedicine.supercast.com/ Resources Taxonomy / DefinitionsMeeusen et al. (2013)European College of Sport Science / ACSM consensus statement on FOR, NFOR, and OTS taxonomy. Defines OTS as a diagnosis of exclusion.https://pubmed.ncbi.nlm.nih.gov/23247672/Meeusen et al. (2006)"Often only after a period of complete rest" — the retrospective nature of distinguishing NFOR from OTS.https://pubmed.ncbi.nlm.nih.gov/23016079/Nocebo Effects in Sport2024 Systematic ReviewNocebo effects in sport were approximately twice the magnitude of placebo effects on performance across 20 studies.https://pubmed.ncbi.nlm.nih.gov/38999724/Stress-Recovery-Adaptation ModelOriginal general adaptation syndrome / stress physiology work in Nature. Foundational source the SRA model was derived from — not a sports science paper.https://www.nature.com/articles/138032a0Multi-system adaptation timescales; critique of single-wave supercompensation model.https://pubmed.ncbi.nlm.nih.gov/3057313/Multi-system adaptation timescales; further critique of the SRA "window of opportunity" model.https://pubmed.ncbi.nlm.nih.gov/15044685/Lack of empirical support for the supercompensation "window of opportunity" in real training scenarios.https://pubmed.ncbi.nlm.nih.gov/29189930/Resistance Training and OTSGrandou et al. (2020)Systematic review: 22 studies on resistance training overtraining. 10 showed zero performance decline under deliberate overload. No reliable biomarker established for RT overtraining; sustained performance drop is the only consistent signal.https://pubmed.ncbi.nlm.nih.gov/31313309/Coleman et al. (2024)9-week supervised high-volume RT protocol (~90 sets/week). No OTS criteria met. Ceiling for resistance training-induced OTS is considerably higher than commonly implied.https://pmc.ncbi.nlm.nih.gov/articles/PMC10809978/Zourdos et al. (2016)Case series: 3 competitive strength athletes performed daily 1RM squat for 30 consecutive days. All three improved.https://pubmed.ncbi.nlm.nih.gov/26816276/Daily 1RM Bench Press Study7 athletes attempted a true 1RM bench press every day for 38 days. All improved despite day-to-day fluctuation.https://www.thefreelibrary.com/Efficacy+of+Daily+One-Repetition+Maximum+Bench+Press+Training+in...-a08283175013 weeks of daily loading; volume arm hypertrophied. Daily frequency did not produce overtraining; volume drives hypertrophy, not frequency alone.https://pubmed.ncbi.nlm.nih.gov/27875635/Fry et al. (1994) — Overreaching ProtocolOriginal resistance overreaching induction: 10×1 at 100% 1RM daily for 14 days. 1RM dropped ~12 kg. Hormonal response was opposite to endurance OTS profile (cortisol decreased, testosterone slightly increased).https://pubmed.ncbi.nlm.nih.gov/7808252/Fry et al. (1994) — Endurance BiomarkersEndurance OTS biomarkers (T:C ratio) do not apply to high-intensity resistance training overreaching.https://pubmed.ncbi.nlm.nih.gov/9843563/Fry et al. (2006)Same overreaching protocol with muscle biopsies. Beta-2 adrenergic receptor density in vastus lateralis decreased 37%. Orthopedic ceiling hypothesis: structural limits intervene before neuroendocrine axis fully desensitizes.https://pubmed.ncbi.nlm.nih.gov/16888042/Raastad et al. (2001)Daily submaximal leg training for 2 weeks; 1RM increased 6%. Intensity (not frequency) is the necessary ingredient for overreaching in resistance training.https://pubmed.ncbi.nlm.nih.gov/11394254/Margonis et al. (2007)12-week progressive RT peaking at ~14 tonnes/week. Significant 1RM decrements not restored after 6-week taper — the only resistance training study to approach true OTS criteria.https://pubmed.ncbi.nlm.nih.gov/17697935/HPA Axis / BiomarkersCadegiani & Kater (2017) — EROS StudyResting cortisol is normal in ≥75% of OTS studies. Reduced pituitary ACTH output (not adrenal failure) is the upstream dysregulation in OTS. "Adrenal fatigue" is mechanistically backwards.https://pmc.ncbi.nlm.nih.gov/articles/PMC5722782/EROS Study — Extended FindingsFurther EROS study data on HPA axis dysregulation patterns in OTS.https://pmc.ncbi.nlm.nih.gov/articles/PMC6590962/Testosterone: acute 30% drops occur routinely after a marathon and normalize within days. Never validated as an individual OTS diagnostic.https://pubmed.ncbi.nlm.nih.gov/3744643/Saw et al. (2016)56-study systematic review of athlete monitoring tools. Subjective measures (mood, perceived fatigue, sleep quality) tracked training load changes with greater sensitivity than objective markers including hormones, resting HR, and HRV.https://pmc.ncbi.nlm.nih.gov/articles/PMC4789708/Meeusen et al. (2004/2010) — Two-Bout Exercise ProtocolTwo maximal incremental tests 4 hours apart with serial blood draws. OTS athletes show blunted ACTH/prolactin response to second bout; NFOR athletes show exaggerated response. Most validated objective test available; not a field tool.https://pubmed.ncbi.nlm.nih.gov/18703548/HRV as a Monitoring ToolHRV for OTS detection: weak data, foundational work done in cyclists and triathletes only.https://pubmed.ncbi.nlm.nih.gov/23852425/Strength recovery occurred ~30 hours after heavy loading; HRV had not normalized at 60 hours. Using HRV as a daily training prescription tool in strength athletes is an untested assumption.https://pubmed.ncbi.nlm.nih.gov/21273908/Session RPE and MonitoringFoster et al. (1998)Session RPE method: training load quantified as RPE × session duration. Key monitoring metric throughout the episode.https://pubmed.ncbi.nlm.nih.gov/9662690/Soreness, mood, and motivation relative to training load as monitoring signals.https://pubmed.ncbi.nlm.nih.gov/38321325/PrevalenceMorgan et al. (1987)The commonly cited 60% OTS prevalence figure. Retrospective self-report using the term "staleness," conducted before the current taxonomy existed. Almost certainly captures all three tiers of the FOR/NFOR/OTS continuum.https://pubmed.ncbi.nlm.nih.gov/3676635/Confounders: PED UseAnonymous Survey Data (2011)29% of Track and Field World Championship athletes admitted PED use; 45% at Pan-Arab Games.https://core.ac.uk/download/pdf/109992897.pdfLippi et al. (2015)WADA detects PED use in only 1–2% of samples; USADA detection rate <1%. Elite athlete PED use is substantially underreported in the OTS literature.https://www.nature.com/articles/517529aConfounders: Psychiatric ConditionsArmstrong & VanHeest (2002)Overlap between OTS and major depression. Depression can produce every OTS symptom; any OTS workup without a formal depression screen is incomplete.https://pubmed.ncbi.nlm.nih.gov/11839081/Confounders: Energy AvailabilityCadegiani et al. (2021)86% of OTS studies showed co-occurrence of reduced energy availability with OTS-like presentation.https://pubmed.ncbi.nlm.nih.gov/34181189/Autoregulation and RPE — Part IBarbell Medicine blog post on autoregulation and RPE-based programming.https://www.barbellmedicine.com/blog/autoregulation-and-rpe-part-i/Training Plateau Action PlanBarbell Medicine practical guide for diagnosing and addressing training plateaus.https://www.barbellmedicine.com/training-plateau-action-plan/Injury / Rehab Coaching Questionnairehttps://www.barbellmedicine.com/coaching-questionnaire-injury-rehab/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #391: VO2 Max vs. Cardiorespiratory Fitness, GLP-1 Costs, and the 10,000-Step Myth | Direct Line March 2026 (Free) 24.03.2026 30分

  In this free preview of the March 2026 Direct Line AMA. Drs. Feigenbaum and Baraki cover: VO2 max versus cardiorespiratory fitness for longevity (are Peter Attia’s targets evidence-based? — with Goodhart’s Law and the JAMA evidence), what GLP-1 medications actually cost now via manufacturer programs ($149–449/month), and whether 7,000–10,000 daily steps actually meet the bar for cardiovascular training. Full episode for Barbell Medicine Plus subscribers at https://barbellmedicine.supercast.com/Timestamps:0:00 — Introduction3:26 — VO2 Max vs. Cardiorespiratory Fitness for Longevity14:11 — GLP-1 Costs: What you should actually be paying now21:43 — Is Walking Enough for Cardiovascular Health?Next Steps:For evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.comResources: JAMA Network Open — Cardiorespiratory Fitness & Long-term Mortality (Mandsager et al.) — Exercise capacity (METs) and longevity — the foundational CRF/mortality study cited in the episode https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2707428JAMA — Blair et al. — Physical fitness and all-cause mortality: a prospective study of healthy men and women https://jamanetwork.com/journals/jama/fullarticle/379243Barbell Medicine Vital Five — Multi-modal CRF benchmarks and longevity targets https://www.barbellmedicine.com/vital-5-action-plan/Lilly Direct — Zepbound (tirzepatide) — Manufacturer direct program ($299–449/month) https://www.lillydirect.com/zepboundNovoCare — Wegovy (semaglutide) — Manufacturer savings program ($149–349/month) https://www.novocare.com/patient/medicines/wegovy.htmlOrforglipron — Eli Lilly oral GLP-1 — What to know about orforglipron (small-molecule oral GLP-1 agonist, pending FDA approval) https://www.lilly.com/news/stories/what-to-know-about-orforglipronOur Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #390: Why Your Waist Matters More Than Your Weight — The Science of Visceral Fat 17.03.2026 44分

  You can have a completely normal BMI and be on your way to cardiovascular disease, type 2 diabetes, and metabolic syndrome without triggering a single alert on a standard health screening. The fat that predicts metabolic risk most accurately isn't the fat your scale or your doctor is tracking. Dr. Jordan Feigenbaum breaks down the science of visceral fat — what it is, how it causes disease, how to measure it correctly at home for free, and what the evidence actually shows about exercise, GLP-1 medications, and testosterone.Timestamps:00:00:00 Cold Open: The Visceral Fat Finding00:00:49 The Scale Problem — What Body Weight Actually Measures00:03:50 What Is Visceral Fat — and Why It's Not Just "Belly Fat"00:05:04 Three Competing Theories: How Visceral Fat Actually Causes Disease00:08:35 Adipokines: PAI-1, Angiotensinogen, and What Happens When Adiponectin Drops00:09:52 How to Measure: Three Sites That Don't Give the Same Number00:14:30 Clinical Thresholds, Ethnic Adjustments, and the Waist-to-Height Ratio00:15:45 The Weight-to-Waist Ratio: Tracking the Quality of Your Fat Loss00:19:20 Sleep, Cortisol, and Why the Hormonal Environment Has to Support the Work00:21:24 Why Exercise Reduces Visceral Fat 6× More Than Diet Alone00:22:02 Mechanism 1 — Beta-3 Adrenergic Receptors and Preferential Visceral Fat Mobilization00:24:10 Mechanism 2 — Myokines: The Fat-Burning Signal Only Contracting Muscle Can Send00:26:21 GLP-1 Agonists and Body Composition: What the Clinical Trials Actually Show00:28:05 DXA's Blind Spot: Myosteatosis, Glycogen, and Why Lean Mass Numbers Are Inflated00:30:10 SEMALEAN, the BELIEVE Trial, and the 1-in-10 Reality of Long-Term Lifestyle Programs00:33:15 Testosterone, Visceral Fat, and the Aromatase Feed-Forward Loop00:36:05 Three Testosterone Ranges: Deficient, Eugonadal, and Supraphysiological00:38:05 The Bhasin 4-Group Study — and Why AAS Are a Class, Not a Synonym for TRT00:39:33 Tesamorelin: The GHRH Analogue That Selectively Targets Visceral Fat00:40:53 Practical Framework: What to Measure, When, and What to Do00:43:20 Key TakeawaysNext StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo join Barbell Medicine Plus and get ad-free listening, product discounts, exclusive content, and more: https://barbellmedicine.supercast.com/To consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.comBarbell Medicine Vital 5 Action Plan: https://www.barbellmedicine.com/vital-5-action-plan/Resources:https://pubmed.ncbi.nlm.nih.gov/11502820/https://pubmed.ncbi.nlm.nih.gov/33567185/https://pubmed.ncbi.nlm.nih.gov/35658024/https://pubmed.ncbi.nlm.nih.gov/40318682/https://pubmed.ncbi.nlm.nih.gov/41068996/https://pubmed.ncbi.nlm.nih.gov/41772149/https://pubmed.ncbi.nlm.nih.gov/23944298/https://pubmed.ncbi.nlm.nih.gov/20948519/https://pubmed.ncbi.nlm.nih.gov/27213481/https://pubmed.ncbi.nlm.nih.gov/23303913/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #389: Your Liver Enzymes Are Elevated — But It Might Not Be Your Liver 09.03.2026 1時間 1分

  A fit, healthy 39-year-old was nearly sent for a liver biopsy. The cause? Was it that he went to the gym before every blood draw or because his supplement was throwing his labs off?. Dr. Jordan Feigenbaum and Dr. Austin Baraki break down the blind spot that sends thousands of healthy athletes down an expensive, potentially unnecessary diagnostic rabbit hole every year.Timestamps:00:01:09  Introducing the Case00:03:44  How to Read a Liver Panel: ALT, AST, GGT, Alk Phos, Albumin Explained00:10:50  What Is GGT and Why Does It Matter Clinically?00:16:38  Why Exercise, Protein, and Creatine Aren't on the Differential (Yet)00:17:35  The Workup: Hepatitis Panels, Abdominal Ultrasound, and More00:19:42  Second Set of Labs — The Mystery Deepens00:25:25  Updated Differential: What's Still on the List?00:27:08  The Labs Normalize — A Critical Clue Appears00:31:40  The Reveal: Exercise Was the Cause All Along00:32:18  The Mechanism: How Exercise Elevates 'Liver' Enzymes00:32:54  Point 1 — ALT & AST Are Not Exclusively Liver Enzymes00:33:49  Point 2 — It's Unavoidable: 100% of Lifters Are Affected00:36:02  Point 3 — It Takes 10–12 Days to Normalize00:37:00  Point 4 — It's Mostly Harmless00:38:27  56% of Physicians Miss This Diagnosis00:38:48  Why Clinicians Overlook Exercise History00:44:01  Point 5 — GGT as the Differentiator (And Its Limits)00:46:42  Why Alkaline Phosphatase Also Rises Post-Workout00:48:51  The Cost of Missing Lifestyle Context: Over- and Under-Diagnosis00:53:29  What to Say to Your Doctor: 3 Patient Scripts00:59:31  5 Key Takeaways01:00:25  Final Advice from Dr. Baraki Next StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo join Barbell Medicine Plus and get ad-free listening, product discounts, exclusive content, and more: https://barbellmedicine.supercast.com/To consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.com Barbell Medicine Vital 5 Action Plan: https://www.barbellmedicine.com/vital-5-action-plan/Resources:Case: https://pubmed.ncbi.nlm.nih.gov/37025214/https://pubmed.ncbi.nlm.nih.gov/29059178/ https://pmc.ncbi.nlm.nih.gov/articles/PMC7438350/https://pubmed.ncbi.nlm.nih.gov/18557801/https://pubmed.ncbi.nlm.nih.gov/19209234/https://pubmed.ncbi.nlm.nih.gov/11476029/https://pmc.ncbi.nlm.nih.gov/articles/PMC11165564/https://pmc.ncbi.nlm.nih.gov/articles/PMC12460594/ https://pmc.ncbi.nlm.nih.gov/articles/PMC2291230/https://pmc.ncbi.nlm.nih.gov/articles/PMC11319523/ https://pmc.ncbi.nlm.nih.gov/articles/PMC3936967/https://pmc.ncbi.nlm.nih.gov/articles/PMC12188904/https://pmc.ncbi.nlm.nih.gov/articles/PMC7969109/https://pmc.ncbi.nlm.nih.gov/articles/PMC11498664/https://pmc.ncbi.nlm.nih.gov/articles/PMC3104191/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #388: Muscle Imbalances, Red Meat Risk, and the Science of Body Fat Set Points 26.02.2026 34分

  In this special preview of the Barbell Medicine Plus Direct Line, Dr. Jordan Feigenbaum and Dr. Austin Baraki move past the fitness basics to tackle high-level technical nuances. We dive into the persistent myth of "muscle imbalances" and why your asymmetry might actually be a functional feature of your training.We also address the "meat" of the cardiovascular debate: is red meat and saturated fat consumption still risky if you are highly active and have a high-fiber diet? Finally, we explore the Dual Intervention Point Model to explain why the body defends its energy stores and how our environment has shifted the biological "set point" for body fat.Timestamps00:00 – Barbell Medicine Plus: Special Annual Membership Promotion01:03 – Muscle Imbalances: A Reliable Predictor of Pain?03:59 – Acuted vs. Gradually Acquired Asymmetries08:55 – How Coaches Should Manage "Alignment" Beliefs11:54 – Is Red Meat Necessary to Limit if You Are Otherwise Healthy?15:36 – The Role of Substitution: Plant vs. Animal Protein19:50 – Analyzing the Lean Mass Hyper-Responder (LMHR) Phenotype26:20 – The Dual Intervention Point Model of Body Fatness30:26 – Lipostat, Gravistat, and the Regulation of Energy StoresNext StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo join Barbell Medicine Plus and get ad-free listening, product discounts, exclusive content, and more: https://barbellmedicine.supercast.com/To consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.com Barbell Medicine Vital 5 Action Plan: https://www.barbellmedicine.com/vital-5-action-plan/ Key TakeawaysAsymmetry as a Feature: Human bodies are not naturally symmetrical. In many athletes—such as tennis players, pitchers, or rowers—asymmetry is a functional adaptation to the sport's demands.The Pathological vs. The Normal: Acutely acquired asymmetries (post-surgery or trauma) require specific clinical attention. Long-standing or gradually acquired asymmetries are rarely the primary driver of pain.Saturated Fat & The Healthy User Bias: While fit individuals have a lower overall risk profile, elevated LDL and ApoB particles represent a "time-volume" exposure risk that should not be ignored based solely on lifestyle.The Lean Mass Hyper-Responder (LMHR): We analyze the bold claims surrounding the LMHR phenotype and discuss why mechanistic hypothesizing currently lacks the "hard human outcome receipts" to prove long-term safety.Body Fat Regulation: The Dual Intervention Point Model suggests the body defends a lower boundary (starvation) and an upper boundary (predation). In the modern environment, the "predation pressure" has vanished, leading to a genetic drift upward in body fat set points.Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #387: The Valsalva Maneuver- Blood Pressure & Safety in Lifting 20.02.2026 1時間 12分

  Most doctors, trainers, and "safety-first" influencers warn that holding your breath while lifting is a dangerous habit that could lead to a stroke or heart failure. By looking back at the 300-year history of the Valsalva maneuver—from a 1704 ear treatment to the "boogeyman" blood pressure studies of the 1980s—we dismantle the myth of the "fragile tube." Discover the science of the "pressurized suit" and why your body is actually designed to handle extreme internal pressure during heavy exertion.Key TakeawaysThe 'Ear Trick' Origins: Originally described in 1704 by Antonio Maria Valsalva as a way to clear middle-ear infections, the maneuver wasn't linked to cardiovascular risk until the 1850s "Weber experiments."The MacDougall 480/350 Study: Why the finding of massive blood pressure spikes during leg presses may have created a "villain arc" for the Valsalva maneuver in modern medicine.Transmural Pressure Protection: A blood vessel fails when internal pressure significantly exceeds external support; during a Valsalva, the internal spike is matched by an external "cradle" of intra-thoracic and cerebrospinal fluid pressure.Reflexive vs. Intentional Bracing: The Valsalva maneuver is a hard-wired reflex that triggers involuntarily at approximately 80% of a maximal voluntary contraction to stabilize the trunk.Vascular Safety and Stroke Risk: Evidence suggests that for healthy populations, the risk of a vascular "pop" is negligible because the pressure gradient across the vessel wall (transmural pressure) remains stable.Pregnancy and Fetal Safety: Clinical data on pregnant athletes shows that heavy, braced lifting up to 90% of a 10-rep max does not cause fetal distress or compromised uterine blood flow.The 'Hissing' Safety Valve: For those prone to lightheadedness or pelvic floor symptoms, using a slow, active exhalation (a hiss) during the concentric phase can help manage pressure transitions.Timestamps[00:00] History: From the 1704 Ear Treatise to the Weber Fainting Experiments[05:26] The 1985 MacDougall Study: Origin of the "480/350" Blood Pressure Boogeyman[06:22] The Anatomy of a Breath-Hold: The 4 Phases of the Valsalva Maneuver[12:59] Reflexive Bracing: Why You Can’t Stop Yourself from Holding Your Breath[28:24] The Pressurized Suit: Transmural Pressure and Vascular Safety[31:00] The Brain and the Box: CSF Protection and Intracranial Pressure[35:27] Heart Health: Does Lifting Cause Pathological Heart Thickening?[41:17] Special Populations: Strokes, Aneurysms, and the 'Pop' Theory[46:15] The Pelvic Floor: Stress Incontinence and the Weightlifter's Paradox[49:34] Pregnancy: Monitoring Fetal Heart Rates During Heavy Braced Lifting[56:42] Contraindications: When is the Valsalva Maneuver Actually Dangerous?Next StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo join Barbell Medicine Plus and get ad-free listening, product discounts, exclusive content, and more: https://barbellmedicine.supercast.com/To consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.com Barbell Medicine Vital 5 Action Plan: https://www.barbellmedicine.com/vital-5-action-plan/ ReferencesMiddle Cerebral Artery and ValsalvaValsalva During Resistance TrainingValsalva and Force Production and WeightIAP During CoughingLifting Belt’s Effects Leg PressTraining and Heart AdaptationsPowerlifter’s HeartsValsalva Maneuver and Cerebrovascular DynamicsRT, VM, and Cerebrovascular PressuresWomen’s Pelvic FloorsPregnancy and RT and AgainFetal Heart RateInjury RiskHerniaSUI PodcastOur Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #386: Longevity Myths- Biological Clocks, GLP-1 Muscle Loss, and What Actually Predicts Lifespan 13.02.2026 2時間

  The longevity industry is now worth over $100 billion per year. From DNA methylation clocks to multi-cancer blood tests and GLP-1 medications, the promises are bold.But what actually predicts lifespan?In this episode, Dr. Jordan Feigenbaum and Dr. Austin Baraki break down the science behind biological clocks, the real story on GLP-1–related muscle loss, and introduce the Barbell Medicine “Vital Five” — a clinically grounded framework for health and longevity.Key Points:The Three Generations of Biological Clocks: Understanding the evolution of DNA methylation tests from simple chronological markers (Horvath) to sophisticated predictors of mortality (GrimAge) and functional decline (DunedinPACE).Descriptive vs. Prescriptive Metrics: Why a biological age score acts as a lagging indicator rather than a tool for clinical decision-making, compared to traditional risk factors like blood pressure and ApoB.GLP-1s and Sarcopenia Reality: A nuanced look at lean mass loss during semaglutide and tirzepatide treatment, emphasizing the difference between total lean mass and actual skeletal muscle quality.Weight-Independent Benefits of Incretins: Analyzing data from the SELECT and FLOW trials regarding the direct cardioprotective and renal benefits of GLP-1 receptor agonists.The Limitations of Early Detection: Why multi-cancer early detection (MCED) tests can lead to diagnostic loops and how clinical utility differs from marketing promises.The Barbell Medicine Vital Five: A definitive framework for longevity focusing on blood pressure, ApoB, VO2 max, relative strength, and body composition.Neurodegenerative Research Outlook: A critical review of the EVOKE trials and the potential (or lack thereof) for current weight-loss medications in treating established Alzheimer's disease.Next StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo join Barbell Medicine Plus and get ad-free listening, product discounts, exclusive content, and more: https://barbellmedicine.supercast.com/To consult with Drs. Baraki or Feigenbaum email us at support@barbellmedicine.com Timestamps:00:00 Overview: longevity industry and proxy metrics01:06 Biological age and DNA methylation clocks08:18 Clinical usefulness and limitations of biological age testing16:16 Multi-cancer early detection tests: screening tradeoffs30:39 Exercise prescription for longevity (treat-to-target)54:39 Protein intake and longevity: evidence and recommendations1:07:23 GLP-1 receptor agonists: outcomes, misconceptions, and use cases1:34:24 Hormone therapy (women and men): risks, benefits, evidence1:49:19 Practical longevity tracking: “Vital Five” markers1:58:15 ClosingReferences:Biological Clockhttps://pmc.ncbi.nlm.nih.gov/articles/PMC8853656/ https://pmc.ncbi.nlm.nih.gov/articles/PMC12038942/https://pmc.ncbi.nlm.nih.gov/articles/PMC11424583/  https://pmc.ncbi.nlm.nih.gov/articles/PMC6366976/ Cancer Screeninghttps://ascopubs.org/doi/10.1200/JCO.2019.37.15_suppl.5574 https://www.thelancet.com/article/S1470-2045(23)00277-2/fulltext https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(23)01700-2/fulltext https://www.nhs-galleri.org/ Exercisehttps://bjsm.bmj.com/content/56/13/755 https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2807854 https://pubmed.ncbi.nlm.nih.gov/35442242/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8915309/?mc_cid=87bfcaaa3a&mc_eid=8786146256 https://pmc.ncbi.nlm.nih.gov/articles/PMC9012529/ https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2707428 https://pubmed.ncbi.nlm.nih.gov/35228201/https://pubmed.ncbi.nlm.nih.gov/35662329/  ​​https://academic.oup.com/biomedgerontology/article/77/4/781/6354429 https://www.sciencedirect.com/science/article/abs/pii/S0025619625001004 https://pmc.ncbi.nlm.nih.gov/articles/PMC12131147/  https://pubmed.ncbi.nlm.nih.gov/18595904/https://pubmed.ncbi.nlm.nih.gov/12242311/ Proteinhttps://pubmed.ncbi.nlm.nih.gov/40418846/ https://pmc.ncbi.nlm.nih.gov/articles/PMC7250948/ https://pubmed.ncbi.nlm.nih.gov/39110456/ https://pubmed.ncbi.nlm.nih.gov/24606898/https://www.bmj.com/content/370/bmj.m2412 GLP-1https://www.cell.com/cell-metabolism/abstract/S1550-4131(26)00008-2 https://www.nejm.org/doi/full/10.1056/NEJMoa2307563 https://www.nejm.org/doi/abs/10.1056/NEJMoa2403347 https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(24)01296-0/fulltext https://link.springer.com/article/10.1007/s11154-025-09991-4 https://pmc.ncbi.nlm.nih.gov/articles/PMC12338914/HRThttps://pubmed.ncbi.nlm.nih.gov/25754617/ https://www.thelancet.com/journals/lanonc/article/PIIS1470-2045(25)00211-6/abstract https://www.nejm.org/doi/full/10.1056/NEJMoa2215025 https://pmc.ncbi.nlm.nih.gov/articles/PMC4527564/ https://www.mdpi.com/1422-0067/25/22/12221 Body Roundness Index (BRI) : https://www.barbellmedicine.com/blog/should-bri-replace-bmi/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• How-To Fix Your Stalled Progress (Strength Edition) 06.02.2026 23分

  Lifting more weight doesn't always mean you've gotten stronger. In this foundational session, Dr. Jordan Feigenbaum and Dr. Austin Baraki introduce the Fitness-Fatigue Model to explain why "stalled" progress is often just a temporary masking of strength by accumulated fatigue. By learning to differentiate between a lack of fitness adaptation and a lack of recovery, you can avoid the "panic pivot" and maintain the long-term signal necessary for elite-level gains.Supercast Sign-UpFor the 6-part audio series and Training Plateau Action Plan, sign-up for Barbell Medicine Plus:https://barbellmedicine.supercast.com/Key Learning PointsThe Fitness-Fatigue Model: Understand the physiological duality of every workout—while a session builds your "fitness" (potential), it also creates "fatigue" that temporarily suppresses your performance.Strength vs. Effort: Performance must be measured relative to RPE. If the weight on the bar increases but the RPE climbs disproportionately (e.g., jumping from RPE 8 to RPE 10 for a 5lb gain), your absolute strength has not actually improved.Noise vs. Signal: A one-week stall is statistical "noise." Constant program hopping in response to a single bad session destroys the cumulative stimulus (the "signal") required for actual tissue adaptation.The Root Cause Audit: Determining the "Why" behind a plateau.Lack of Fitness: The stimulus is no longer sufficient to drive a new adaptation (Needs more volume/intensity).Lack of Recovery: The fatigue is overwhelming the adaptation (Needs a deload or volume reduction).Autoregulation as a Diagnostic Tool: Using RPE not just to prescribe load, but to "interrogate" your current state of recovery and readiness.Timestamps[00:00] Intro: Introducing the Barbell Medicine Plus Exclusive Series[02:15] The Thought Experiment: 310x6 @ 8 vs. 315x6 @ 10[05:30] Deep Dive: Defining the Fitness-Fatigue Model[09:45] Interpreting the Stall: Is it a Stimulus Problem or a Recovery Problem?[14:20] The Danger of "Short-Termism": Why Panicking Destroys the Signal[18:50] Introduction to the 6-Part Audio Course & Actionable PDFPearlsThe Pivot Rule: Never change a successful program based on a single week of data. Look for a 3-week trend of stagnant or declining performance (at the same RPE) before initiating a program pivot.Peaking Mechanics: Most "peaking" protocols do not build new strength; they simply reduce fatigue to reveal the strength you've already built.The stimulus-Recovery Trap: If you feel "beat up" but the weights are moving well, you likely don't need a deload yet. If you feel "great" but the weights are stuck, you likely need a stronger stimulus.Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #385- Why Grip Strength Predicts Death (And Why You Shouldn't Train It) 30.01.2026 53分

  Can a simple one-second squeeze predict your risk of cardiovascular disease, cognitive decline, and all-cause mortality? Dr. Jordan Feigenbaum and Dr. Austin Baraki explore why grip strength has become the go-to metric for the longevity industry and why most people are interpreting the data incorrectly.Timestamps:[00:00] Intro: The Longevity Industry’s Thermometer Error[01:42] The Neuro-Axis: Anatomy of a Maximal Squeeze[06:43] The 35-3-5 Rule: Biomechanics of Grip[09:12] Asymmetries and Clinical Red Flags[17:31] Dynapenia vs. Sarcopenia: Why the Hand Fails First[18:41] Normative Data and the PURE Study Statistics[27:16] Genetics, Lean Body Mass, and Predictive Power[31:44] Absolute vs. Relative Grip Strength (The Metabolic Signal)[37:03] Bro-Science Beatdown: Neural Jitter and Training Readiness[42:19] The Extensor Training and "Grip Maxing" Myth[45:13] Programming: Systemic Training vs. Indirect Grip Work[48:10] The Straps Debate: Are You Killing Your Gains?[52:03] Final Verdict: Hierarchy and Health PrioritiesKey Takeaways:Grip is Systemic: Handgrip strength tests the integrity of the entire system, from the motor cortex in the brain down to the tendons and bones. It is a proxy for overall muscular quality and neurological health.Predictive Power: According to the PURE study, for every 5 kg decrease in grip strength, there is a 17% increased risk of cardiovascular death and a 7% increased risk of non-cardiovascular death.The Sarcopenia Floor: Clinical "red zones" for probable sarcopenia are <27 kg for men and <16 kg for women.Relative Strength Matters: Relative grip strength (Grip Strength ÷ BMI) is a more accurate predictor of hypertension, diabetes, and dyslipidemia than absolute grip strength alone.Don't Chase the Test: Direct grip training (crushers, etc.) obscures the predictive power of the test. To improve health, focus on indirect systemic resistance training (training the whole body) rather than "gaming" the thermometer.Next StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized medical and training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo join Barbell Medicine Plus and get ad-free listening, product discounts, exclusive content, and more: https://barbellmedicine.supercast.com/RESOURCES:https://europepmc.org/article/med/1538102 https://pubmed.ncbi.nlm.nih.gov/12188074/#/ https://pmc.ncbi.nlm.nih.gov/articles/PMC6322506/ https://pmc.ncbi.nlm.nih.gov/articles/PMC10777545/#/ https://pmc.ncbi.nlm.nih.gov/articles/PMC6322506/#/ https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0113637#/ https://pubmed.ncbi.nlm.nih.gov/31499496/#/ https://pubmed.ncbi.nlm.nih.gov/25982160/#/ https://www.sciencedirect.com/science/article/pii/S2095254620300752?via%3Dihub#/ https://pubmed.ncbi.nlm.nih.gov/27701433/#/ https://pmc.ncbi.nlm.nih.gov/articles/PMC5517526/#/ https://pubmed.ncbi.nlm.nih.gov/18271028/#/ https://pmc.ncbi.nlm.nih.gov/articles/PMC7344191/#/https://pmc.ncbi.nlm.nih.gov/articles/PMC7244054/#/ https://www.sciencedirect.com/science/article/abs/pii/S1388245710003561#/ https://pubmed.ncbi.nlm.nih.gov/25653226/#/https://pmc.ncbi.nlm.nih.gov/articles/PMC6306785/#/ https://pubmed.ncbi.nlm.nih.gov/27619723/#/ Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode 384: The Paralyzed Personal Trainer (Mystery Case) 23.01.2026 1時間 3分

  Dr. Feigenbaum and Dr. Baraki walk through the clinical workup of a 24 year old male presented with persistent weakness in his foot following weight loss of 22 pounds in two weeks. What could've possibly caused this?The discussion pivots to the science of how fast one should lose weight. While athletes should prioritize slow loss to preserve performance and lean mass, the data for individuals with obesity suggests that the speed of loss may be less critical than protein intake and resistance training.Timestamps:00:00 - The Case of the Paralyzed Personal Trainer 03:48 - How Doctors Build a Differential for Weakness 12:08 - Interpreting Negative Labs and MRI Results 15:04 - Identifying Foot Drop and Nerve Distribution 20:53 - Understanding Nerve Conduction and EMG Studies 26:06 - The Diagnosis: Slimmers Paralysis Explained 32:56 - Are GLP-1 Medications Increasing Nerve Injury Risks? 35:01 - Rapid vs Slow Weight Loss: Muscle Mass and Performance 41:27 - The Truth About Metabolic Adaptation and Weight Regain 52:33 - New Research on Weight Regain After Stopping Medications 58:32 - Clinical Recommendations for Sustainable Weight Management Key Learning Points (SPOILER ALERT)Slimmer’s Paralysis (Dieting Palsy): Discover how rapid fat loss depletes the protective structural fat pads at the fibular head, leaving the common peroneal nerve vulnerable to compression.The "Two-Hit" Model: Understand how the combination of biological depletion (rapid weight loss) and mechanical provocation (aggressive stretching or squatting) triggers focal weakness.Speed vs. Quality for Athletes: Evidence suggests that for trainees, a slower weight loss rate of $\sim$0.7% of body weight per week is superior for maintaining lean mass compared to faster rates.Metabolic Adaptation as a Signature of Success: Why a reduction in resting metabolic rate is an unavoidable adaptive response to weight loss and not necessarily a predictor of future weight regain.Diagnosing Focal Weakness: A step-by-step look at how clinicians differentiate between lumbar spine issues and peripheral nerve entrapment using physical exams and electrodiagnostic testing.Resources:Case: https://pubmed.ncbi.nlm.nih.gov/39809480/ https://pubmed.ncbi.nlm.nih.gov/29503139/ https://pmc.ncbi.nlm.nih.gov/articles/PMC12157737/ https://pmc.ncbi.nlm.nih.gov/articles/PMC11273815/ https://pubmed.ncbi.nlm.nih.gov/32576318/ https://pubmed.ncbi.nlm.nih.gov/20443094/ https://pubmed.ncbi.nlm.nih.gov/24372837/ https://pubmed.ncbi.nlm.nih.gov/25459211/ https://www.bmj.com/content/392/bmj-2025-085304 Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Episode #383: Scientific Populism vs. Consensus - The 2026 Food Pyramid 16.01.2026 1時間 16分

  In this episode, Dr. Jordan Feigenbaum and Dr. Austin Baraki dissect the federal government’s 2026 Food Pyramid Reset and its radical shift in nutrition policy. They explore the history of industry lobbying that shaped previous guidelines and evaluate whether the new emphasis on protein and animal fats aligns with current clinical evidence. Finally, the doctors provide the framework for the Barbell Medicine Dietary Guidelines, offering a practical, evidence-based framework for managing the modern food environment.Timestamps00:00 - Introduction: The 1992 Food Pyramid vs. the 2026 Reset03:11 - A History of Lobbying: From the McGovern Committee to the USDA09:44 - Big Food and Big Tobacco: How the American pantry was engineered17:15 - The Good: Protein floors and the official war on ultra-processed foods27:13 - The Bad: Saturated fat, beef tallow, and the dairy hall pass44:02 - The Ugly: The 25-gram fiber gap and the retreat on alcohol guidelines54:10 - Economic barriers and the Healthy Eating Index scores01:06:18 - The Barbell Medicine Dietary Guidelines: A practical frameworkNext StepsFor evidence-based resistance training programs: barbellmedicine.com/training-programsFor individualized medical and training consultation: barbellmedicine.com/coachingExplore our full library of articles on health and performance: barbellmedicine.com/resourcesTo join Barbell Medicine Plus and get ad-free listening, product discounts, exclusive content, and more: https://barbellmedicine.supercast.com/Key Learning PointsEnvironment over Willpower: Weight gain is an emergent process caused by an engineered food environment that adds nearly 500 passive calories to the average American's daily intake compared to 1977.The New Protein Floor: The 2026 Reset finally acknowledges that the old 0.8g/kg RDA was a "survival dose." The new range of 1.2–1.6g/kg is a victory for skeletal muscle health, though doesn't really change intake for many (if they even read the guidelines).Incoherent Fat Logic: There is a fundamental conflict in guidelines that recommend beef tallow and butter while simultaneously advising that saturated fat stay below 10% of total calories.The Fiber Gap: By emphasizing animal proteins over legumes, the new guidelines risk widening the already massive fiber deficiency in the U.S.The 10:1 Rule: For better metabolic health, aim for a carbohydrate-to-fiber ratio of 10:1 (acceptable) or 5:1 (elite).ReferencesBarbell Medicine Guidelines Coming Soon! https://www.youtube.com/watch?v=inCEbKyWYwg (Trial of Big Food)https://pmc.ncbi.nlm.nih.gov/articles/PMC12027923/ https://www.govinfo.gov/content/pkg/CPRT-95SPRT98364O/pdf/CPRT-95SPRT98364O.pdf https://pubmed.ncbi.nlm.nih.gov/31462476/ https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1001050 https://pubmed.ncbi.nlm.nih.gov/6841553/ https://pubmed.ncbi.nlm.nih.gov/7068846/ https://pubmed.ncbi.nlm.nih.gov/6841553/ https://pubmed.ncbi.nlm.nih.gov/7068846/ https://pmc.ncbi.nlm.nih.gov/articles/PMC10552423/ https://pubmed.ncbi.nlm.nih.gov/26980437/ https://pubmed.ncbi.nlm.nih.gov/26843151/ https://pmc.ncbi.nlm.nih.gov/articles/PMC10552423/ https://pubmed.ncbi.nlm.nih.gov/26980437/ https://pmc.ncbi.nlm.nih.gov/articles/PMC6124841/ https://pubmed.ncbi.nlm.nih.gov/28889851/https://www.ers.usda.gov/data-products/chart-gallery/chart-detail?chartId=58372#:~:text=As%20their%20incomes%20rise%2C%20U.S.,of%20after%2Dtax%20income). https://www.ers.usda.gov/data-products/food-price-outlook/summary-findings#:~:text=Beef%20and%20veal%20prices%20are,higher%20than%20in%20August%202024. https://pmc.ncbi.nlm.nih.gov/articles/PMC4733413/ https://pubmed.ncbi.nlm.nih.gov/26843151/ https://www.barbellmedicine.com/blog/how-to-eat-a-healthy-diet/https://www.barbellmedicine.com/resources/calorie-calculator/ https://www.barbellmedicine.com/resources/macronutrient-calculator/Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands
• Trailer: The Fiber Action Plan is Here 13.01.2026 2分

  Fiber is the most underutilized tool in human nutrition. While the internet is currently buzzing about the new food pyramid and debating processed foods versus beef tallow, most people are missing the actual structural levers that dictate health and performance.Today, we are launching the Barbell Medicine Fiber Action Plan to bridge the gap between clinical science and your next trip to the grocery store.If you are a Barbell Medicine Plus subscriber, you can binge the entire 4-part audio series and download the full Action Plan right now in the Plus feed. If you are not a subscriber, head to the link below to sign up for early access to the Action Plan and exclusive content.Join Barbell Medicine Plus: https://barbellmedicine.supercast.com/In this series, we move beyond the simple soluble versus insoluble labels and discuss how fiber can lower cholesterol, manage blood sugar, and regulate satiety. Nutrition should not be a social media shouting match; it should be a deliberate strategy for your health. Stop guessing, get the guide, and let us get to work.Our Sponsors:* Check out Chilipad and use my code sleep.me/BBM for a great deal: https://sleep.me* Check out FIGS and use my code FIGSRX for a great deal: https://wearfigs.com* Check out Factor and use my code factormeals.com/bbm50off for a great deal: https://www.factor75.com* Check out Quince and use my code quince.com/bbm for a great deal: https://www.quince.comAdvertising Inquiries: https://redcircle.com/brands