{"podcast":{"title":"Growth Minds with Sean Kim","slug":"growth-minds-with-sean-kim-349068","podcast_index_feed_id":349068,"rss_url":"https://anchor.fm/s/1ebb5710/podcast/rss","website_url":"https://www.jumpspeak.com","image_url":"https://d3t3ozftmdmh3i.cloudfront.net/staging/podcast_uploaded_nologo/5055940/5055940-1753122665661-c9d8cff1ba95b.jpg","author":"Sean Kim","episode_count":231,"summary":"Impactful conversations with the world's top experts in health, wealth, and love to help you reach your full potential. Guests include: Robert Kiyosaki (Rich Dad Poor Dad), Steve Aoki, Robert Greene, Dr. Jason Fung, Dr. Steven Gundry, Neil deGrasse Tyson (StarTalk), Dennis Rodman, Wim Hof, Daniel Pink, Doctor Mike, Lewis Howes (School of Greatness), Tom Bilyeu (Impact Theory), Andrew Yang, Dr. Paul Conti, Charles Hoskinson (Ethereum), Dr. Drew (After Dark), Jo Koy, Jordan Belfort (Wolf of Wall Street), Dave Asprey (Bulletproof).","last_synced_at":null,"page_url":"https://stenobird.com/podcast/growth-minds-with-sean-kim-349068"},"episode":{"title":"Vitamin D Expert Busts The Big Myth About Sunlight! Can It Cure Dementia?","slug":"vitamin-d-expert-busts-the-big-myth-about-sunlight-can-it-cure-dementia","published_at":"2026-01-16T12:00:00+00:00","page_url":"https://stenobird.com/podcast/growth-minds-with-sean-kim-349068/vitamin-d-expert-busts-the-big-myth-about-sunlight-can-it-cure-dementia","show_page_url":"https://stenobird.com/podcast/growth-minds-with-sean-kim-349068","url":"https://podcasters.spotify.com/pod/show/growth-minds/episodes/Vitamin-D-Expert-Busts-The-Big-Myth-About-Sunlight--Can-It-Cure-Dementia-e3dmhl6","audio_url":"https://anchor.fm/s/1ebb5710/podcast/play/114033766/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-0-15%2F416165318-44100-2-1d31c93d9043d.mp3","summary":"Dr. Roger Seheult is a physician specializing in pulmonary and critical care medicine and is widely recognized for his expertise on vitamin D and sunlight’s role in human health. He is the co-founder of MedCram, where he explains the science behind vitamin D, immune function, sleep, and metabolic health in a clear, evidence-based way. Dr. Seheult is known for translating complex medical research into practical guidance that helps people optimize health and resilience. In our conversation we discuss: (0:00) – Sunlight benefits beyond vitamin D (3:39) – Can sunlight increase lifespan (6:36) – Sunlight versus outdoor activity benefits (13:20) – Best time of day for sunlight (19:52) – Morning cortisol: wake time versus sun timing (21:01) – Is sunlight best cortisol trigger (22:56) – Front-loading cortisol and workout timing (27:26) – Blue light effects on circadian rhythm (33:36) – Why earlier sleep improves energy (39:12) – Can late sleepers fully adapt (40:26) – Ideal sleep and wake schedule (44:01) – Can weekend sleep make up deficits (45:39) – Daily melatonin use safety (51:04) – Recommended sleep supplements (1:00:30) – Are chronotypes fixed or flexible (1:00:53) – Sunscreen risks and benefits (1:05:39) – Face sunscreen with body sun exposure (1:08:38) – Sun exposure needed for vitamin D (1:11:44) – Optimal vitamin D dosage and toxicity (1:14:05) – Other key immune system boosters (1:19:47) – Hot and cold therapy for immunity (1:25:52) – Sauna and cold exposure guidelines Watch full episodes on: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠https://www.youtube.com/@seankim⁠⁠⁠⁠⁠⁠⁠⁠ Connect on IG: ⁠⁠⁠⁠⁠⁠⁠https://instagram.com/heyseankim","meta_description":"Dr. Roger Seheult is a physician specializing in pulmonary and critical care medicine and is widely recognized for his expertise on vitamin D and sunlight…","key_points":[],"chapters":[],"topics":[],"duration_seconds":5400,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/growth-minds-with-sean-kim-349068/episodes/vitamin-d-expert-busts-the-big-myth-about-sunlight-can-it-cure-dementia/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/growth-minds-with-sean-kim-349068/vitamin-d-expert-busts-the-big-myth-about-sunlight-can-it-cure-dementia.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}