Graham Ruby, a bioinformatics scientist, took a hard look at the longevity data from 400 million people. It turns out that the true heritability—the influence of genes on longevity—is only around 7 percent, much less than had been previously assumed. It’s true that longevity runs in families, but in Ruby’s study, longevity was almost as likely to show up in nonblood relatives, like in-laws, as in blood relatives.
longevity apparently not tied to heritible genes. This is interesting and likely needs addtional reserach.
