I play an intense competitive sport which burns easily 5000 calories a week, keep a reasonable diet, and do stretches/cooldowns according to my Dr and physio. Then at home I do a pretty basic routine of squats, push-ups, sit-ups, and stretch band exercises. I don’t smoke and barely drink anymore either.
I’m 38 and that keeps me in great physical condition, healthy weight, nice muscle tone; plus I’m energetic, and mostly injury free. I’ve also noticed I’m aging significantly better than my stagnant friends and colleagues.