Don't listen to a bunch of LOSERS! Anybody at such a young age as 40's or 50's that thinks you are destined to be a fat out of shape slob, is CRAZY!
As you age the only thing is it takes LONGER to recover! You can still work out and stay "young" as long as you want.
I'm 65, 6',175 and can out work much younger guys where I work! They all think I'm not telling the truth when I tell them I'm 65.
If Jack Lalane was still here w/us, he would kick their BUTTS!
Probably more than half of my co-workers are Fat, abt half of them are OBESE!
Keep working out and have the last laugh on them.
Cudamike13