What Actually Builds Bone — And Why Most Exercise Doesn't
Bone is the one tissue we train that no device reads — and the exercise that helps everything...
Longevity & Supplement Guides
Evidence-scored guides to supplements, biomarkers, and daily protocols. Written the way we score our products: honestly.
Muscle Power Leaves Before Strength Does
Power — force produced quickly — declines about twice as fast as strength does, and appears to track...
The Invention of Normal: Where 37 °C Came From
In 1868 a Leipzig physician turned about a million armpit readings into 37.0 °C. He also published a...
Bedroom Air Quality and Sleep: The Free Variable Nobody Measures
We measure the sleeper in exquisite detail and ignore the sealed room they spend eight hours in. What...
Coffee and longevity: a permission slip, not a prescription
Half a million people, eight cups a day, and every genotype anyone thought to test — and coffee...
Muscle Adapts Fast. Tendon Doesn't.
Radiocarbon dating says the core of your Achilles was built before you turned eighteen and has barely been...
Humans could live to 194. The number that matters is 100.
A new npj Aging model puts the somatic-mutation ceiling on human life at 146–194 years. Read properly, it...
One Number for a Whole Night: What an AI Found in 10,000 Sleep Studies
A new Nature Communications model read the raw signals from more than 10,000 overnight recordings and found a...
One Workout a Week: What the New Trial Actually Prescribed
A randomised trial found that 75 minutes of interval training worked about as well squeezed into one day...
The Best Time of Day to Exercise — and Why the Studies Disagree
In six weeks this spring, three large studies each named a different best hour to train. The disagreement...
SuperAgers: Why Exceptional Memory at 80 Isn't in the Genes
A July 2026 study looked for the genetic signature behind SuperAgers — people in their eighties whose memory...
The case for eating less protein — and where it stops applying
A July 2026 review of 350+ studies makes the strongest argument yet for restricting protein. A 2026 cohort...
