In case you're assuming that the secret to longevity is whatever it is that is true of a person who happens to have lived to be very old.
Ever met somebody who minded her own business, didn't eat junk food, and died young?
I followed a link yesterday to some article — I forget where — that said maybe having a lot of orgasms would increase your life span. Knock yourself out. I mean... it also said that being lonely would shorten your life span but having relationships would lengthen it. So get out there and find somebody to love. Preferably not a murderer.