After 50? There are tons fo things to start in life... smoking, boozing, partying... this is the time you enjoy your life... what's the point trying to live LONG LONG life.. the years after 60 is not rosy, anyways... teeth falling one by one... difficulty in bending, urinating.. and so on.. why to elongate life at that sage of life.. that's not wuality life... Start enjoying life... Yeah, forgot to mention VIAGRA..