The longest living people being studied don't train hard -- they don't train at all. They just move normally in day to day activities instead of living sedentary lives. Training hard is just something to do if that's what you like to do, and because it causes injuries that get harder to fix as one ages, it can also shorten life. If it isn't fun, don't bother, but you do need to move. The longest living people being studied do not eat a lot of protein -- mostly they eat less animal food than others and more vegetables and fruits.