Section

Biohacking

Self-experimentation, wearables, and protocols examined against the evidence rather than the marketing.

The sequencing is real. The interpretation layer sold alongside it is mostly extrapolation.

Sep 24, 2026 • 9 min

Heart rate and movement are decent. Sleep staging, calories, and recovery scores are inference layered on inference.

Sep 21, 2026 • 10 min

Outdoor light in the first hour after waking shifts sleep timing more reliably than any supplement marketed for sleep.

Sep 8, 2026 • 8 min

A six-hour half-life means an afternoon coffee is still active at bedtime. The measurable cost shows up in deep sleep.

Sep 4, 2026 • 8 min

The Finnish cohort data is striking. The trial data that would confirm it does not exist yet.

Sep 3, 2026 • 10 min

Continuous glucose monitors are the flagship biohacking device. The signal is real; most of the interpretations around it are not.

Jul 24, 2026 • 11 min

Cold plunges have strong effects on mood and inflammation markers — and a documented cost if you time them wrong.

Jul 20, 2026 • 10 min

Epigenetic clocks have poor test-retest reliability and no validated response to intervention. Here is what to track instead.

Jul 12, 2026 • 12 min