Sunlight Matters

Episod

• Real Estate & Why Sunlight Matters in Property Search 18.06.2026 38min

  In this episode of Sunlight Matters, Dave is joined by product leader Dave Masters, former product executive at Realtor.com, to explore the future of real estate search, consumer behavior, and why sunlight data could become an essential part of buying a home. From AI-powered property discovery to the overlooked importance of natural light, shade, and home orientation, this conversation dives into how technology is reshaping the way we search for homes — and what’s still missing. Dave Masters ...
• Editing the Sun — How Indoor Light Lost Touch With Biology 08.06.2026 1j 24min

  In this fascinating and deeply thought-provoking episode of Sunlight Matters, Dave Wallace sits down with four leading thinkers from radically different disciplines to explore a provocative new scientific theory. The discussion centres on a groundbreaking new paper, Editing the Sun: How Indoor Light Lost Touch with Biology, which explores how changes in modern lighting — particularly the shift away from sunlight and infrared-rich light — may be influencing metabolism, mitochondrial function, ...
• The Sun Has a Score — Introducing Sunscore from Shadowmap 15.05.2026 54min

  Sunlight Matters PodcastEpisode: In this special episode of Sunlight Matters, David Wallace sits down with Shadowmap founder and CEO Georg Molzer to reflect on the journey behind Shadowmap, humanity’s relationship with the Sun, and the launch of a genuine world first: Sunscore — the first property-specific sunlight metric, now live on Redfin. Together, they explore: Why sunlight profoundly shapes health, wellbeing, and human experienceHow Shadowmap began from a simple craving for winter...
• Sensing Light with Lys Technologies 30.04.2026 48min

  In this episode, our guest is Christina Friis Blach, co-founder of Lys Technologies, about how light shapes our health, performance, and daily lives. They explore how sunlight exposure and circadian rhythms influence sleep, hormones, and energy—and why modern indoor environments often disrupt this balance. Christina shares how her company is helping bridge the gap between science and real life through wearable light technology and sunlight analysis tools. ☀️ About Lys Technologies Lys Technol...
• Sunlight, Health & Rethinking Modern Medicine 16.04.2026 59min

  In this thought-provoking episode, we sit down with Jonathan Jarecki, a 20-year-old pre-med student exploring the frontier of light biology, mitochondrial function, and the hidden impact of our modern indoor lifestyle. What begins as a conversation about holistic health quickly evolves into a powerful exploration of how sunlight exposure, artificial lighting, and our disconnection from nature may be influencing everything from energy levels and brain function to chronic disease and mental hea...
• Sunlight Matters LIVE from Alicante: Light, Life & the Power of Solar Exposure 02.04.2026 1j 3min

  In this special in-person episode of Sunlight Matters, recorded on a sun-drenched rooftop terrace in Alicante, Dave and Georg are joined by daylight expert Paul Rogers to explore the profound relationship between sunlight, architecture, and human wellbeing. From the emotional impact of dark living spaces to the life-changing benefits of solar exposure, the conversation blends personal stories with expert insight. The trio reflects on how sunlight shapes our mood, energy, and health—often subc...
• How Light, Nutrition & Circadian Health Transformed a Pro Fighter 19.03.2026 36min

  From Fight Camp to Sunlight: In this episode of Sunlight Matters, guest host George Alexander speaks with professional kickboxer and osteopath Nathan, currently ranked #1 heavyweight in the UK for Muay Thai and #2 for K-1 kickboxing. Nathan shares how working with previous podcast guest, health practitioner Teresa Bug, completely reshaped his approach to performance — moving beyond traditional calories-in/calories-out fitness culture into a deeper understanding of sunlight exposure, cir...
• Lightspiracy: The Hidden Politics of Modern Lighting with Anna Levin 05.03.2026 50min

  Was the global ban on incandescent light bulbs really a climate breakthrough — or did we rush into a lighting revolution without fully understanding the biological and environmental consequences? In this episode, Dave speaks with journalist and author Anna about her book Incandescent and her unexpected journey into the politics and science of modern lighting. What began as a personal health reaction to new “energy-efficient” bulbs became a much deeper investigation into how we regulate light,...
• Light, Life Energy & Breatharianism – Rethinking Science with P.A. Straubinger 26.02.2026 1j 25min

  What if the human body isn’t powered by calories alone? In this thought-provoking episode, we sit down with Austrian filmmaker P.A. Straubinger, creator of the groundbreaking documentary In the Beginning There Was Light, to explore one of the most controversial and fascinating questions in modern science: 👉 What is life energy? We dive into breatharianism, fasting, biophotons, mitochondria, the fourth phase of water, and the growing tension between scientific materialism and emerging research...
• Is glass in our windows making us sick with Joe Menchefski 19.02.2026 1j 1min

  Glass, Sunlight & Human Health In the first episode of Series 2, we’re joined by daylighting expert and chemical engineer Joe Menchefski to explore a critical but often overlooked topic in modern building design: glass. While low-E glass and LED lighting have dramatically improved energy efficiency, emerging research suggests they may also filter out parts of the light spectrum essential for human health. Are our buildings optimized for energy — but not for biology? 🌞 What We Cover Why hu...
• How LED Lighting Is Harming Humans With Professor Glen Jeffery 28.01.2026 46min

  In this insightful podcast discussion, friend of the podcast, Professor Glen Jeffery, sheds light on his recent study published in Nature (https://www.nature.com/articles/s41598-026-35389-6) Introduction In a world dominated by LED lighting, we often overlook its potential health consequences. Professor Glen Jeffery's groundbreaking study highlights the significant effects of artificial lighting on our vision and overall metabolic health. The Research Background Professor Jeffery begins by ad...
• Cities of Light, Cities of Shadow 05.12.2025 51min

  In this episode of Sunlight Matters, Dave sits down with the brilliant Paula Longato—architect, daylight consultant, and lighting designer—to explore why daylight access and sunlight analysis are critical yet often overlooked elements in urban design and architecture. 🎙️ What You'll Learn: Why modern cities like New York and Dubai are "dark daylight cities" 🌆The role of shadow mapping and solar exposure in creating healthier urban environmentsHow real estate sun studies can shape better build...
• 💡 Light, Health & the Built Environment: Ulysse Dormoy on the Real Cost of Indoor Living 27.11.2025 56min

  Dave sits down with Ulysse Dormoy, CEO of Atrium Ltd, to explore a subject hiding in plain sight: the light we live under every day — and how it’s quietly impacting our health, performance, and wellbeing 🌞🏙️ What starts as a conversation about lighting design quickly reveals a much bigger story. From LED flicker and infrared deprivation, to the shocking parallels between ultra-processed food and ultra-processed light, Ulysse shares his journey into the world of light as a biological force. We...
• The Sun 08.11.2025 1j 50min

  What if everything you thought you knew about sunlight was just scratching the surface? ☀️🔬 In this illuminating episode of Sunlight Matters, hosts Dave and Georg sit down with world-renowned astrophysicist Dr. Bob Fosbury — a former senior scientist with the European Space Agency, key contributor to both the Hubble and James Webb Space Telescopes 🔭, and a trailblazer at the intersection of astronomy, biology, and human health. 🌌 From black holes and the Big Bang to mitochondria and macular d...
• Surviving Winter with Sunlight – A Conversation on Light, Health, and Infrared Science with Glen Jeffery, Bob Fosbury and Scott Zimmerman 30.10.2025 1j 24min

  In this companion episode to the Roger Seheult episode, Dave is joined by three experts—Prof. Glen Jeffery, Scott Zimmerman, and Dr. Bob Fosbury—to explore how sunlight and infrared light influence human health, particularly in the darker months when Seasonal Affective Disorder (SAD) becomes more prevalent. Dave opens up about his own experience with SAD, leading to a wide-ranging discussion of how modern indoor lighting, architecture, and urban planning fail to meet the biological needs shap...
• Surviving Winter. You don't need to be SAD with Dr Roger Seheult 22.10.2025 58min

  As winter approaches in the North, the days get shorter, the skies darker, and for many of us, our energy, mood, and health start to dip. In Part 1 of a 2-part special of Sunlight Matters, Dr Roger Seheult joins Dave and Georg to share science-backed tips to help you stay healthy, energized, and resilient through the long winter nights. From understanding the hidden power of infrared light to simple daily routines that boost your immune system and mood, this episode is packed with practical a...
• Light, Rights & Urban Fights: Daylight in a Densifying World 09.10.2025 38min

  In this thought-provoking episode of Sunlight Matters, we travel across Europe to explore how daylight access, sunlight rights, and urban densification intersect—and often clash. Joining us are three brilliant minds working at the forefront of daylight analysis and sunlight legislation: 🌞 Mina Gaarder – A Civil Engineer based in Norway who recently completed a master’s thesis on daylight in dense urban areas, comparing regulatory frameworks in Norway, Sweden, the UK, and the U.S. She brings a...
• Fitness, the Sun and Winter Protocols 25.09.2025 57min

  In this episode, we are joined by David Herrera, better known online as The Solar Athlete, who brings a unique blend of engineering, biology, and real-world coaching to the conversation. From his backyard in high-altitude Wyoming, David shares the incredible journey that took him from world-class powerlifter and oilfield technician to a leading voice on circadian biology, light hygiene, and solar optimization for human performance. In this episode, we dive into: ☀️ Why sunlight exposure...
• Sunlit Computers with Peter Veto and Liliana Lettier of Pixun 19.09.2025 49min

  What if your computer screen could heal you instead of harming you? In this episode of Sunlight Matters, we’re joined by Dr Peter Veto and Liliana Lettieri, the visionary team behind Pixun — a company pioneering solar-powered, full-spectrum displays that use real sunlight instead of artificial backlighting. Peter and Liliana share their personal journeys with light sensitivity, screen-induced insomnia, and EMF-related health issues, and how those struggles inspired them to engineer a radicall...
• From Riot Police to Sunlight Healer: Theresa Bug on Trauma, Circadian Health & Natural Living.. Alles Wird Gut! 04.09.2025 1j 17min

  In this powerful and eye-opening episode, Dave speaks with Theresa Bug, a former German police officer turned online health coach, holistic nutritionist, and advocate for natural light, grounding, and mitochondrial health. 🌿 Theresa shares her inspiring journey from a high-stress career in law enforcement—across Paris, London, Israel, and Africa—to deep healing through sunlight exposure, circadian rhythm restoration, and reconnecting with nature. Her story is a testament to the life-changing ...