
Circadian biology from first principles. Fix your sleep, metabolism, and energy without drugs or confusion.
| Platform | Pricing | Freemium | Publishes | Daily | |
|---|---|---|---|---|---|
| Issues | 337 | Founded | 4 years ago | Last Issue | 5 days ago |
| Active | |||||

Right now, inside every cell in your body, there is a molecule absorbing blue light and converting it into red light. It sits inside your mitochondria. It predates humans by billions of years. It is part of the same chemical family that mak...
I repeat it often, but every cell in your body runs on a 24 hour circadian clock. Your liver, pancreas, gut, and immune system all have internal oscillators that expect food during daylight hours and expect silence at night. When you eat ou...
I have strongly stood by the notion that shorter (UV and blue) and longer (red and infrared) light wavelengths have a synergistic relationship to facilitate the health of human beings within the context of circadian alignment.
This is why...
Do I need to remind you that UV light creates DNA lesions like thymine dimers and cyclobutane pyrimidine dimers, which are categorically DISTINCT from DNA mutations?
A lesion is damage. A mutation is a permanent heritable change to the gen...
When UV-B reaches your skin, the primary target is the keratinocyte, the dominant cell type in the epidermis. UV-B carries enough energy to directly damage DNA, specifically by fusing adjacent thymine bases into what are called cyclobutane...
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The writers behind this newsletter.
Your doctor is afraid of the sun. I’m not. Circadian biology is the medicine they never taught.
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