What about exercise regimes?

[Mufasa]

50 here as well, ya old fart... well... I will be in Jan.

I'm on the paintball field every Saturday for at least 4-5 hours no matter the weather. Constantly on the move when I'm there.
I do a bit of heavy bag work during the week - just punches and kicks, but try going as hard as you can for three minutes if you're not used to it.
Whew! Push ups are quick and easy - and they don't cost a dime to do.
Other than not bombing my system with sweets and junk food - that's it.
6'1 / 185 constantly. (granted - I do lose about 4-5 pounds some days at the field... but that's water)