It does help to be born with good genes and I believe I was, but you still have to maintain a healthy lifestyle.

I was raised working in a ice plant, so I was at one time anyway, extremely fit. Also ran, in school and afterwords.
Any of my fellow oldtimers remember Ray "Boom Boom" Mancini. Yeah! That kind of fit. He too worked in a ice house.

Now at 64 years young and retired, I ride a trainer and cross country ski in the winter, Ride bikes (Mountain bike and road bike) in
the summer, and stretch a lot (Don't be afraid to let your wife teach you a little yoga) Work to keep our little horse farm in shape, and
still start and train horses.

Byron