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Epigenetic Clocks

Blue-gloved hands hold a person’s fingertip beside a clinical work surface, with a small purple device in the other hand.

Epigenetic Clocks

Pace of Aging Tests Explained

A pace-of-aging score is a rate, not an age: 1.0 means aging at the speed of the average 45-year-old in New Zealand's Dunedin Study. Here's how to read…

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Gloved hands hold a needle and collection holder beside a bare arm resting on a cushion, with a tourniquet above the elbow.

Epigenetic Clocks

Phenotypic Age Explained

Phenotypic age turns nine routine blood markers plus your age into a mortality-risk score read in years. What it predicts, where it wobbles, how to compute it.

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A blue-gloved hand holds five blue-capped sample tubes containing dark and pale liquid layers.

Epigenetic Clocks

DunedinPACE vs. GrimAge vs. PhenoAge

DunedinPACE reports a rate (1.0 = average); GrimAge and PhenoAge report an age in years. Built differently, they agree only moderately; none is a diagnostic.

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Gloved hands handle purple-capped tubes in a rack beside pipettes and tip boxes on a laboratory bench.

Epigenetic Clocks

Epigenetic Age Tests Explained

An epigenetic age test reads methylation tags on your DNA and runs them through a statistical clock. Here's what the number is made of, and what it isn't.

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