> "vaguely feeling a bit better in three months, maybe living an extra year or two when everything is falling apart anyway" as sufficient. Once you are middle-

> "vaguely feeling a bit better in three months, maybe living an extra year or two when everything is falling apart anyway" as sufficient. Once you are middle-aged (and even before for many people) it is much more than "vaguely feeling a bit better". Without reasonable muscle-tone and fitness your joints will ache every single day and you will begin losing mobility and getting injured more easily. I hate exercising. I do it because it is too costly not to.