In this episode, my guest is Dr. Glen Jeffery, PhD, a professor of neuroscience at University College London's Institute of Ophthalmology and a leading expert on how light interacts with mitochondria to shape health and aging. Today, he discusses how red and near-infrared light penetrate deep into the body and improve mitochondrial function and overall health. We also discuss how detrimental modern indoor life has become and why expensive red light panels are likely unnecessary and possibly harmful. By the end, you'll understand sunlight as a biological input your body evolved to depend on and the low-cost, practical steps you can take to get more of it. FULL SHOW NOTES HERE: https://l1nk.dev/bjuu235 Sponsor: Shadowmap https://app.shadowmap.org/?ref=jonathan&discount=JONATHANJ Code: JONATHANJ Sponsor: Ra Optics https://www.raoptics.com/JONATHANJ Code: JONATHANJ About this guest: Academic Profile: https://profiles.ucl.ac.uk/7465 Google Scholar: https://scholar.google.com/citations?user=UYlObKkAAAAJ&hl=en LinkedIn: https://www.linkedin.com/in/glen-jeffery-441a2b1b/ Timestamps: 00:16 Intro 02:46 Dr. Glen Jeffery 03:14 Love for Science, Undergraduate 04:24 Tiina Karu, Photobiomodulation Origins, Mechanisms 06:14 Mechanisms, Cytochrome C Oxydase, Nanowater, Electron Flow 10:56 Cytochrome C Oxydase, Extra-Pineal Melatonin, Oxidative Stress 12:45 Gerald Pollack, Exclusion Zone (EZ) Water 13:45 Red/IR Light Passes Through the Human Body; Optics 18:09 Red Light On Fruit Flies; Lifespan, ATP Production 21:15 Human Epidemiology; Sunlight, Lifespan, All-Cause Mortality 22:35 Sponsor: Shadowmap 23:30 Features and Benefits of Shadow Map 25:02 Incandescents, lifespan, and more 25:02 Incandescent Light Produces the Oldest Flies; Broad Band IR on Lifespan 25:48 Incandescent Light Bulbs, Vision 28:19 Evolutionarily Conserved Mitochondria 29:03 Long-Wavelength Light & Blood Glucose; Mitochondria 32:50 Unpublished CGM Data; Long-Wavelength Light & Blood Glucose 36:57 Are Red Light Panels Harmful?; Light Intensities, Precautions, Mitigations 43:56 Why Do We See Beneficial Effects From Long-Wavelength Therapy? 46:43 Short-Wavelength Blue Light, Mitochondria, Mechanism 49:08 The Built Environment, Actionable Steps 52:24 Sponsor: Ra Optics 54:24 Flicker 55:24 Retinal Health, Blue Light, Red/IR Light 59:09 Clinical Trial for Mitochondrial Disease; Ptosis, Red Light 01:02:31 Biophotons, Mitochondrial Communication, Red/NIR on Biophotons 01:13:54 Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Social Media, Substack Newsletter