Feel Better, Live More with Dr Rangan Chatterjee Feel Better, Live More with Dr Rangan Chatterjee

BITESIZE | The Science of Sunlight: How 20 Minutes a Day Could Transform Your Mood, Energy & Sleep | Dr Roger Seheult #684

Oct 1, 2026 · 24m

Summary

Dr. Roger Sehe argues that sunlight is the most critical health intervention, explaining how visible light regulates circadian rhythms and mood, while UV light produces vitamin D. He highlights recent research showing that infrared light penetrates deeply into the body to restore mitochondrial energy production, combating age-related cellular decline. The episode offers practical advice, such as spending 20 minutes outside daily or using light therapy boxes, to address the widespread issue of indoor living and light deficiency.

Topics discussed

Sponsor: AG1 Daily Health Drink and Offer Introduction: The Power of Natural Light Historical Context: Florence Nightingale and Sunlight Visible Light: Mood, Depression, and Circadian Rhythm Ultraviolet Light and Vitamin D Production Infrared Light: Penetration and the Glenn Jeffrey Study Mitochondrial Function and Cellular Energy Restoration The Phone Battery Analogy and Mitochondrial Dysfunction Safe Exposure: Getting Infrared Light in the Shade Indoor vs Outdoor Light Intensity (Lux Levels) Dr. Roger's Personal Routine for Sunlight Exposure Summary: The Three Components of Sunlight Practical Tips: Daily Duration and Timing Alternatives: SAD Boxes and Vitamin D Supplements Conclusion and Closing Remarks
Listen ad-free on Castria