Circadian biology from first principles. Fix your sleep, metabolism, and energy without drugs or confusion.
| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 352 | Founded | 4 years ago | Last Issue | 7 days ago |
| Active | |||||
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zaidkdahhaj.substack.comLatest Issues
Did Our Ancestors Sunbathe?
Ask how early humans handled the sun and you get certainty from every direction.
One camp says they avoided direct light and took it in short protective bursts. Another says they lived under it all day and were better for it. Both are narr...
Circadian Disruption Alone Can Drive Metabolic Dysfunction
Photo by Mori M on Unsplash
This paper is one of the landmark human studies demonstrating that circadian disruption itself, not simply poor sleep, is sufficient to impair metabolism and cardiovascular physiology. It provides one of the str...
The Color That Unifies Us
Modern dermatology built its authority on a narrow slice of the picture and mistook that slice for the whole. Circadian biology asks for the whole picture back. That shift alone, from fragmentation to integration, is enough to change how a...
The Bradford Hill Criteria: 9 Questions That Separate Correlation From Cause
We’ve all come across a number of scientific headlines that state many different things. Sunlight increases the risk of cancer. Childhood burns increase the risk of melanoma development. Total sunlight exposure is linked to lower all-cause...
The White Spots On Your Legs Are Not Sun Damage
I’ve had a number of people ask me about idiopathic guttate hypomelanosis or IGH for short. The word idiopathic means the medical establishment does not know the cause. Everything stacked on top of that word, every sunscreen lecture, is a s...
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Your doctor is afraid of the sun. I’m not. Circadian biology is the medicine they never taught.
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