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Commune with Jeff Krasno

How Light Heals: The Forgotten Medicine of the Sun

Commune with Jeff Krasno

Commune Media

Society & Culture, Health & Fitness

4.5673 Ratings

🗓️ 11 November 2025

⏱️ 52 minutes

🧾️ Download transcript

Summary

In this episode of The Commune Podcast, Jeff Krasno explores how our relationship with light — both natural and artificial — shapes every system in the body. From sleep and mood to metabolism and longevity, light governs our circadian rhythm and hormonal balance in profound ways. Jeff breaks down the science of blue light, infrared radiation, and vitamin D synthesis, revealing how morning sunlight, time in nature, and even darkness play essential roles in human health. You’ll also learn simple, evidence-based protocols for aligning your body’s natural clock, improving sleep quality, and reducing stress — by returning to the rhythms our ancestors lived by. LMNT Get a free sample pack with any purchase at DrinkLMNT.com/COMMUNE Bon Charge  Get 15% off when you order at boncharge.com and use promo code COMMUNE Igniton Visit igniton.com and use code Commune75 for $75 off your order of two bottles or more. Stemregen Get 20% off your first order at stemregen.co/commune with the code COMMUNEPOD Mimio Get 25% off with code COMMUNE25 at Mimiohealth.com

Transcript

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0:00.0

I often say that disease is a normal and expected result of our adaptive mechanisms simply trying to cope with our lifestyle.

0:15.3

In short, our culture has hijacked our evolution. And I like to underscore this concept by leveraging my great, great, great, great, great, great,

0:25.1

grandfather, times 600, who lived as a hunter-gatherer in 10,321 BC in the area of East Africa

0:34.6

that we now call Kenya.

0:36.7

His name was Fege Ansarck, which somewhat unimaginatively is my name spelled backwards.

0:44.0

Fegg's lifestyle and ecosystem mirrored those of hundreds of generations before him.

0:50.3

And across vast swaths of time human biology evolved in relationship to its environment.

1:00.0

Now, I have virtually the same exact biology as FEDGE, maybe a closer shave, but our cultural

1:07.1

conditions could not be more different. Now, this change in culture has created evolutionary mismatches.

1:15.6

Our hard-wrought advantages have now become disadvantageous.

1:20.6

Now, there are many, many examples of how culture has rendered the adaptive maladaptive.

1:28.3

And today, I explore the human relationship with light.

1:35.3

I dive into many of the ancient health-conferring aspects of being exposed

1:41.3

to the right amount of light and the right kind of light at the right times.

1:49.1

I will also outline how our modern rapport with light, both artificial and natural light,

1:55.9

leads to a variety of negative physiological and psychological conditions.

2:02.6

And I will introduce protocols related to deliberate light therapy

2:08.6

that can realign you with your adaptive mechanisms

2:12.6

and lead to greater well-being.

2:14.6

And I will try to accomplish this in a light-hearted manner.

2:20.4

Now, let me begin with a guilty pleasure and admission. I love movies. I absolutely adore

2:27.9

documentaries and good TV series. As Skyler and I were members of Netflix when they used to send you those red DVD containing

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