Personally for me working out regularly is not only a physically benefit, but mental/psychological. It helps me tremendously with my life's stressors and gives me just a general feeling of well-being.
I'm 55 y.o. and still work-out 6-7 days per week. I was a competitive Olympic style weightlifter from 17 - 23 years old. Had 2 National records; won the NJ State Heavyweight Class tilte in 1973 and '74. Won the National Collegiate 242lb. class overall title in 1975. So I suppose I have weight lifting/weight training in my bones!
My bodyweight now is 195 lbs and I do concentrate my workouts about 75% cardio and 25% weights now. Gotta keep that ticker goin' at 55 and rising.
On the flip side though I'm not a health fanatic. I smoke 3-6 cigars per week, 8 - 10 good craft beers per week, have a bit of a sweet tooth, like to hit the buffet bar occasionally. My point is ya still need to enjoy life, just try to maintain some semblence of rationality and balance. :grin: