The Dr. Tyna Show
The Dr. Tyna Show
Dr. Tyna Moore
Afraid of the Sun? Why We Need to Rethink Sunlight | Zaid K. Dahhaj
1 hour 13 minutes Posted Oct 29, 2026 at 7:00 am.
Introduction
Zaid’s Background + Circadian Biology
Morning Sunlight + Hormones
Skin Pigmentation + Evolution
Sunlight + Immune Health
Vitamin D + Seasonal Depression
Circadian Rhythm + Skin Health
Sunlight, Blood Sugar + Metabolism
Nighttime Eating + Insulin Resistance
Nighttime Cravings + Blood Sugar
Alcohol, Sleep + Acid Reflux
Sunlight + Skin Cancer
UV Exposure + DNA Repair
Melanin + Skin Repair
Heliotherapy + Sunlight Therapy
Sunlight + Gut Health
Hormesis + Sun Tolerance
Artificial Light + Circadian Rhythm
Indoor Living + LED Lighting
Sunlight + Skin Adaptation
Sunlight + Long-Term Health
Artificial Lighting + Ambiance
Where to Find Zaid
0:00
1:13:28
Download MP3
Show notes
EP. 288: Join my new community for Gen X women: https://www.skool.com/drtyna
I’m joined by sunlight and circadian biology educator Zaid K. Dahhaj to talk about one of the most misunderstood foundations of health: sunlight and circadian helath. We get into how light and darkness influence our hormones, metabolism, skin, sleep, and overall health, and why I believe getting outside deserves a much bigger place in our wellness routines.
Topics Discussed:
→ How does sunlight affect hormones and metabolism?
→ Why is morning sunlight important for circadian rhythm?
→ How does nighttime light affect sleep and recovery?
→ What is the connection between sunlight and skin health?
→ How does modern indoor living affect our circadian rhythm?
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On This Episode We Cover: 
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Further Listening: 
→ The Truth About Sunlight Deficiency | Jonathan Jarecki
Check Out Zaid Dahhaj: 
→ Instagram 
→ Website 
→ Substack 
→ TikTok
Disclaimer: Information provided in this podcast is for informational purposes only. This information is NOT intended as a substitute for the advice provided by your physician or other healthcare professional, or any information contained on or in any product. Do not use the information provided in this podcast for diagnosing or treating a health problem or disease, or prescribing medication or other treatment. Always speak with your physician or other healthcare professional before taking any medication or nutritional, herbal or other supplement, or using any treatment for a health problem. Information provided in this blog/podcast and the use of any products or services related to this podcast by you does not create a doctor-patient relationship between you and Dr. Tyna Moore. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent ANY disease.