The Health Risks of Artificial Light and Importance of Natural Sunlight

In this episode of the Evolving Wellness Podcast, we’re joined by Dr. Roger Seheult, an ICU physician, pulmonologist, and sleep expert, who’s also the founder of the wildly popular YouTube channel MedCram. Dr. Seheult reveals the surprising connection between light exposure and health, discussing how hospital lighting environments are contributing to illness and the critical role of circadian rhythms in healing. He shares fascinating insights from his research and practical advice on improving circadian health, including the benefits of infrared light, forest bathing, and aligning with natural sunlight. From shift work impacts to the science of daylight savings and even melatonin myths, this episode is packed with valuable tips and eye-opening information for optimizing your health through better light management.

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Timestamps: 

• 00:00:00 - Introduction 

• 00:03:31 - The MedCram YouTube Channel 

• 00:04:47 - Discovering Circadian Biology  

• 00:08:59 - The Benefits of Infrared Light  

• 00:11:26 - Why You Can’t Biohack Light  

• 00:13:08 - Case Study: Light’s Role in COVID-19  

• 00:15:30 - The Healing Power of Nature

• 00:19:41 - The Science of Circadian Rhythms & Light Exposure at Night  

• 00:24:02 - Hormonal Health & Cancer Rates

• 00:26:04 - Shift Work and Night Shifts

• 00:28:43 - How Daylight Savings Affects Flu Spikes  

• 00:30:27 - Harvard Kennedy School Study: Sunlight & Flu Prevention  

• 00:33:38 - The Dangers of Over-Supplementation  

• 00:36:19 - Practical Tips for Night Shift Workers  

• 00:38:53 - Ketosis, Intermittent Fasting, and Circadian Health  

• 00:39:43 - The Link Between Eating at Night and Rectal Cancer  

• 00:45:45 - Breakfast vs. Dinner: Timing and Health Benefits  

• 00:48:08 - Medication Timing and Its Impact on Circadian Rhythms  

• 00:50:15 - Training Your Circadian System for Optimal Health  

• 00:51:03 - Why We Crave Snacks at Night  

• 00:55:33 - Changing the Medical System

• 01:03:33 - UV Light and the Risk of Skin Cancer  

• 01:07:44 - The Truth About Melatonin Supplementation  

Check Out Dr. Roger:

• Website 

• Youtube

• X (Twitter)

• Instagram

This video is not medical advice & as a supporter to you and your health journey - I encourage you to monitor your labs and work with a professional!

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