Yeah, I didn't realize how little overall effect it had. Pretty much either has to be a confounder or like exercise: much more benefit in terms of quality than

Yeah, I didn't realize how little overall effect it had. Pretty much either has to be a confounder or like exercise: much more benefit in terms of quality than quantity. One big problem with longevity is so many things go wrong--completely removing even a major cause of death produces surprisingly small gains.