Longevity UnmaskedLongevity Unmasked

Question 45 of 433

Which clock is the best?

Automatic upper-arm blood pressure monitor with screen on navy table

The short answer

For predicting who gets sick and who dies, GrimAge and DunedinPACE perform best in research. No clock is yet good enough to steer treatment for one individual.

This distinction matters. In a study of thousands of people, a clock can clearly separate the fast agers from the slow. For one person on one day, the result can wobble by a couple of years depending on the lab, the time of day, a recent infection, or plain statistical noise.

“This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship.” From the book’s medical disclaimer. Full disclaimer

Evidence scope
COMPARATIVE RESEARCH — Different clocks estimate different constructs; no best clinical treatment-guidance clock established.Evidence grade (draft mapping)Grade pendingPart 4, Q45 · Part sources
All of Part 4

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