I'm born 1951 so under your age requirement, but was always told to plan ahead.
My goals have always been less competitive, but physically appropriate for my outdoor interests.
Bike, hike, ski, kayak.
Ride 150 mi/week , or 12 hours/wk in season - cardio & lower body
Hike 12 mi/week, mountain trails start in our 'hood. (former USFS Wilderness Ranger)
Ski in winter (former vol patroller)
Kayak when I make the effort, not much lately.
The Community Center gym (a rare visit) gives me upper body.
Lawn and garden work on an acre lot bordering to forest = general bodywork.
Upkeep on a dozen vintage roadies keeps my mind occupied with the hobby.
6'1", currently 180 lbs (as in pic), morning RHR = 42, no Rx meds.
less facial hair these days.
Goal = stay active enough to feel good every day.
I believe in "go steady" and "listen to the body". And smile a lot.
Don't fall in Powder Bowl @ Crystal
A bit chubbier in this riding pic