A critical-care doctor argues that sunlight, not just vitamin D, may be the overlooked key to fighting chronic disease and aging.

Dr. Roger Seheult — Board-certified physician in internal medicine, pulmonology, critical care and sleep medicine who works across three hospitals and co-founded the medical education channel MedCram. He treats critically ill ICU patients and breaks down complex science into accessible health advice.
Dr. Seheult lays out his 'NEWSTART' framework of eight health pillars (Nutrition, Exercise, Water, Sunlight, Temperance, Air, Rest, Trust) and spends most of the episode making the case that sunlight is the lowest-hanging fruit. He argues that infrared light from the sun penetrates deep into the body and upregulates intracellular melatonin, which protects mitochondria from oxidative stress, the root of diseases like dementia, diabetes and heart disease. He contends vitamin D was mostly a marker for sun exposure rather than the active ingredient, citing COVID, hospital, and population studies. The conversation also covers sauna and cold therapy for immune function, the dangers of bright nights and dark days, circadian rhythm, the immune benefits of forests and fresh air, and the role of faith and forgiveness in health. It closes with his theory that the structure of the biblical temple mirrors the structure of the human cell.
Books, products and media the guest or host genuinely endorsed here — with the buy link.
Affiliate link — we may earn a commission at no extra cost to you.
(generic)
“I supplement with vitamin D. I think it's there's a benefit to supplementing with vitamin D, no question.” — Dr. Roger Seheult 00:08:17Find it on Amazon
(generic)
“if you're having difficulty falling asleep, a little tiny dose of melatonin, no more than 5 mg, can be actually very beneficial.” — Dr. Roger Seheult 01:54:28Find it on Amazon