Right now im working out to get that beach body, because when im 60 or 70, chicks arent going to be drooling over my sexy body (well there are chicks out there who like older men, but the odds are 1 in a gazillion).
No offense to any older dudes, your still cool.
Oh yea about sex, i heard if you engage into sex more often with your spouse you will live longer, so thats another benefit.