Cheek cell–based epigenetic clock allows scientists to estimate mortality risk

Cheek cell–based epigenetic clock allows scientists to estimate mortality risk

We don’t all age at the same rate. But while some supercentenarians may age exceptionally slowly due to winning the genetics jackpot, a plethora of behavioral and lifestyle factors are known to speed up aging, including stress, poor sleep, poor nutrition, smoking, and alcohol. Since such environmental effects get imprinted on our genome in the form of epigenetic marks, it is possible to quantify molecular aging by characterizing the epigenome at prognostic genomic sites.

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