Do you feel YOUNGER than the man in the mirror?
I'm three years older than my Barracuda. I used to be a gymnast before the last Ice Age. Never got out of the daily habit of stretching and working out on my ballet barre (now, the balcony railing because it's higher) and can still do the splits. If I was inclined to put on the clothes I have packed away from junior high school, they'd fit. I rarely hurt except minor muscle soreness from polishing efforts or lame shoes combined with too much concrete time.
My mom brought our family portrait and my Senior class pictures the last time she came to visit and I don't even know the 16 year old version in them anymore. I guess it's still pretty much the same basic face and figure ... but those dark circles under the eyes and that worried (distracted???) look behind them now never seem to go away. Whether it's part of growing older or growing up is a question I refuse to answer or acknowledge. But I'm going to go out kicking and screaming and fight it every step of the way.