Ep 50: Circadian Biology Expert on The Missing Piece of Modern Wellness

Is the sun actually medicine?

Most of us have been taught to fear sunlight. At best, we think of it as a way to get vitamin D. At worst, we see it as something that damages our skin and accelerates aging.

But what if the human body actually runs on light?

In this episode of Grounded Wellness, we sit down with heliotherapy practitioner and circadian biology educator Zaid Dahhaj to explore the deeper science of sunlight and how it programs nearly every system in the body.

From hormones and metabolism to skin repair, sleep, and mitochondrial function, light acts as one of the most powerful biological signals we receive every day.

We discuss why modern life has disconnected us from the natural light cycles our bodies evolved around, how artificial blue light may be disrupting our health, and why the sun might be one of the most misunderstood forces in modern medicine.

We also break down how different times of day affect the body differently. Morning sunlight, midday UV exposure, and sunset all play unique roles in regulating circadian rhythms, producing hormones, supporting mitochondrial energy, and even protecting the skin.

If you’re eating clean, exercising, and doing “all the right things” but still feeling tired, inflamed, or out of sync, your light environment may be the missing piece.

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In this conversation, we explore:

• Why sunlight may be one of the most powerful forms of medicine

 • How artificial blue light disrupts circadian signaling

 • The connection between light exposure, skin health, and aging

 • Why morning sunlight helps regulate sleep and hormone production

 • The surprising health benefits of midday sun exposure

 • How melanin protects the body and why tanning may not mean skin damage

 • The role of light in mitochondrial energy and chronic disease prevention

 • Why sunglasses and sunscreen may influence how your body responds to sunlight

 • How modern indoor lifestyles disconnect us from our biological programming

This episode will challenge everything you’ve been told about the sun and offer a new perspective on how aligning with natural light cycles could transform your health.

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Learn More from Zaid Dahhaj:

• Website: https://www.zaidkdahhaj.com/
• Instagram: https://www.instagram.com/zaidkdahhaj/
• X: https://x.com/zaidkdahhaj
• Substack: https://substack.com/@zaidkdahhaj
• Podcast: https://www.youtube.com/c/THE2AMPODCAST

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