Issue №003
June 16, 2026
What your gut does at 2am on a call night.
The circadian biology of the call night — and what the evidence says about limiting the damage.
A letter on gut health, performance, and longevity
Decoding the evidence.
Prose a runner can use before tomorrow’s long run and a clinician can quote in clinic.
Free, twice weekly. Every claim cited. Unsubscribe any time.
Latest letters
[ More letters arrive twice weekly ]
I will not recommend anything I would not take myself, give to my own patients, or hand to a training partner before a long race.