Vitamin D Expert: The Fastest Way To Dementia & The Dangerous Lie You've Been Told About Sunlight!

Vitamin D Expert: The Fastest Way To Dementia & The Dangerous Lie You've Been Told About Sunlight!

The Diary Of A CEO with Steven Bartlett · 2025-07-17

Is your daily routine ruining your health? Is THIS habit silently triggering dementia?

Vitamin D Expert Dr. Roger Seheult reveals how sunlight exposure, caffeine intake, and sleep can impact cancer risk, accelerate dementia, and fry your dopamine brain!



Dr. Roger Seheult is a world-leading doctor in internal medicine, lung health, critical care, and sleep medicine. As co-founder of MedCram, he’s helped millions understand how vitamin D, sunlight, mitochondria, and circadian rhythms impact disease, brain health, and longevity.



In this powerful interview, he explains:

◻️How just 2 minutes of morning sunlight can boost dopamine by 250%.

◻️The daily habit increasing your cancer risk (and how to fix it).

◻️What caffeine does to your sleep, hormones, and mental clarity.

◻️How red and infrared light boost your mitochondria.

◻️How sleep, light, and nutrition create a blueprint for longevity.



00:00 Intro

02:27 What Is Roger Aiming to Accomplish?

03:28 The 8 Pillars of Health

09:13 Story of Henry: A Fungal Lung Disease Patient

20:40 Why Our Mitochondria Need Sunlight

27:46 Sunlight and Viruses: Impact on COVID-19

30:00 Vitamin D and Lower Risk in COVID Patients

33:55 Benefits of Using Infrared Light Devices

47:50 Could More Sunlight Help You Live Longer?

51:20 Does the Sun Really Cause Melanoma?

54:37 Are Humans Meant to Live Outside?

57:31 Is It Worth Wearing an Infrared Light Mask?

59:31 How to Get Infrared Light on a Cloudy Day

01:08:14 Optimal Time of Day to Get Sunlight

01:09:34 Circadian Rhythm and Light Exposure

01:11:28 Benefits of SAD Light Therapy

01:13:02 Can Looking Through a Window Help Circadian Rhythm?

01:15:11 Why Should We Avoid Bright Screens at Night?

01:17:31 Should the Bedroom Be Completely Dark at Night?

01:19:23 Do Vitamin D Supplements Work?

01:21:14 Possible Consequences of Vitamin D Overdose

01:22:02 The Role of Vitamin D in the Body

01:24:00 Do Cravings Signal Nutrient Deficiencies?

01:25:35 Water’s Role in the Body

01:27:20 Interferons and the Innate Immune System

01:32:52 Importance of Hydration for Fighting Infections

01:34:35 Should We Use Hot and Cold Therapy Together?

01:36:10 Impact of Tree Aromas on Immunity

01:38:44 Do Indoor CO₂ Levels Matter?

01:39:30 How Can We Optimize Indoor Air Quality?

01:40:37 Faith as a Way to Deal With Stress and Anxiety

01:42:42 Conditional vs. Unconditional Forgiveness and Stress

01:45:55 Are People Who Believe in God Generally Healthier?

01:47:34 Roger’s Experience Witnessing Death

01:49:14 A Miraculous Story: Anoxic Brain Injury Recovery

01:59:17 Should Hospital Patients Be Taken Outside?

01:59:57 Are Melatonin Supplements Good for Sleep?

02:00:45 Side Effects of Melatonin Supplements





Follow Dr Roger:

Youtube - https://bit.ly/452IbrP

X - https://bit.ly/3Udq5NA

Instagram - https://bit.ly/3UgDLaA
📃 Research document: https://bit.ly/44Kh1pL



💡You can find out more about the light therapy lamp mentioned, here: https://amzn.to/4lXsUyc

💡You can find out more about the Aranet4 CO₂ meter mentioned, here: https://bit.ly/4lIvRmk



The Diary Of A CEO:

⬜️Join DOAC circle here - https://doaccircle.com/

⬜️Buy The Diary Of A CEO book here - https://smarturl.it/DOACbook

⬜️The 1% Diary is back - limited time only: https://bit.ly/3YFbJbt

⬜️The Diary Of A CEO Conversation Cards (Second Edition): https://g2ul0.app.link/f31dsUttKKb

⬜️Get email updates - https://bit.ly/diary-of-a-ceo-yt

⬜️Follow Steven - https://g2ul0.app.link/gnGqL4IsKKb



Sponsors:

Linkedin Jobs - https://www.linkedin.com/doac

KetoneIQ - Visit https://ketone.com/STEVEN for 30% off your subscription order

Stan Store - https://stevenbartlett.stan.store/
Learn more about your ad choices. Visit megaphone.fm/adchoices

The Diary Of A CEO with Steven Bartlett

The Diary of a CEO with Steven Bartlett is a podcast hosted by Steven Bartlett, the CEO of the social media management company, Social Chain. The podcast features Bartlett's reflections on his experiences as a CEO, as well as interviews with other business leaders and entrepreneurs. The show provides insights into the challenges and opportunities of running a successful business, as well as the personal journeys of its guests. The Diary of a CEO is known for its honest and candid discussions on the realities of being a CEO, and is aimed at helping listeners understand the inner workings of successful businesses.

UK Podcasts

I was a broke, university dropout, at 18 I built an industry leading social media marketing company, and at 27 I resigned as CEO. At 28 I co-founded Flight Story – a marketing and communications company, and thirdweb - a software platform, making it easy to build web3 applications. I then launched private equity fund, Flight Fund, to accelerate the next generation of European unicorns. During this time I decided to launch 'The Diary Of A CEO' podcast with the simple mission of providing an unfiltered journey into the remarkable stories and untold dimensions of the world’s most influential people, experts and thinkers.

If you enjoy the show, please hit the follow button! That's a small way you can help us carry on doing this, thank you for listening.

My New Book: https://g2ul0.app.link/DOAC
IG: https://www.instagram.com/steven
LI: https://www.linkedin.com/in/stevenbartlett-123

Where can you listen?

Apple Podcasts Logo Spotify Logo Podtail Logo Google Podcasts Logo RSS

Episodes