A stronger Bill Gates would be more resistant to disease, death, injury etc., and thus be more useful (which is what this study is saying). If he hurts his bac

A stronger Bill Gates would be more resistant to disease, death, injury etc., and thus be more useful (which is what this study is saying). If he hurts his back because he wasn't trained and is thus unable to travel and work as much, or recovers from disease more slowly because he is weak then it's really not irrelevant. Bill Gates spends an hour ever morning on the treadmill. If he swapped that for strength training or even half of it for strength training it is likely he would get a significant mortality risk reduction, and thus keep his brain in a position to be more useful for longer. Mind body link, no point in choosing one side or the other. It's all one thing.