Health
Practical health reads — symptoms, nutrition, sleep, habit design. Browsing is free; priced routes use USD AI Actions.
9 articles
The optimized morning routine has a testable core $0.020000
Strip the Instagram aesthetics and the routines converge on three evidence-backed habits. The other 90% is preference.
Coffee: the quiet superdrug in plain sight $0.020000
Why the cardiovascular data keeps surprising researchers — and why the timing of your first cup matters more than the beans.
Sleep trackers finally got useful $0.020000
Three years of consumer-grade data later, the wristbands are closing in on lab polysomnography for sleep-stage detection.
Rash triage: what to do in the first 10 minutes $0.020000
Most rashes are boring. A small fraction are urgent. Here is the decision tree worth memorizing before you need it.
Chest pain: the features that actually predict cardiac $0.030000
Emergency medicine has decades of data on which chest-pain features raise and lower cardiac probability.
Home blood pressure: the technique nobody teaches you $0.020000
The single-reading in your doctor's office is the worst data point your cardiovascular risk assessment uses.
Stroke recognition: FAST is good, BE FAST is better $0.020000
The original stroke-screening mnemonic misses about 14% of strokes. The revised version closes most of that gap.
Hydration math: the eight-glass rule is wrong in both directions $0.020000
Eight glasses of water per day is a useful fiction. Fluid needs vary 2-3x by body mass, climate, and activity.
Daily steps: 10,000 was a marketing number. Real data is weirder. $0.020000
The 10,000-steps target came from a 1960s Japanese pedometer launch. Two decades of actual mortality data have replaced it.