I have probably related this before but....
I met a Widower who was 95 from Texas at the factory a few years ago. His family was trying to get him to hang it up and live with them and...maybe he should have.
But I met several more, one a Pilot who was widowded and 95 and he had no plans to hag it up.
Five years or so ago met a WWII Vet Navy at VA who was getting around more lively than 30 year olds and smoking like a tar keel.
And others in their seventies with sever arthritis, diabetes etc who are slowing down.
So don't slow down or age will catch up with you.