Good on you, thats really what it should be about! I played tennis with a guy that was 96 and couldn't believe how well he still moved, loved it.
When you stop moving, you become out of shape, and it is a slow but sure road to early death. If one prefers that life style, who am I to try to force them to change? Each individual has to decide for themselves.
I keep posting my personal experience with exercise for ONLY ONE REASON.
Hopefully it will inspire some of you to adopt a life style change and enjoy your gains in trading a lot longer.