This is my fave photo of my health and vigor, for example, from my actually sailing days, Napali Coastline trail. That was well over thirty years ago and I assure you I don't look that trim and tan these days.

BUT, when I feel feeb'ish I like to take a short look at it to remind myself that once there was sun and fun and youth, you know? But mebbe you were just thinking of last summer....

To all who are young and putting stuff off until they retire, I say beware. Look at your folks DNA and see how well they are/were at retirement before you put stuff off too long.