Your Grandma May Be Old, But That Doesn’t Mean You Will Be, Researchers Say
November 7, 2018
(CNN) – Think you’ll be around for a long time because Grandma lived to a ripe old age? Not so fast: Genetics has only a small impact on longevity, a new study involving more than 400 million people suggests. Longevity is mostly decided by lifestyle, with less than 10% down to DNA, according to the study, published Tuesday in the journal Genetics.