I'm 64, I'm in better shape than I was 10 years ago (a trip to the ER 5 years ago helped that along). I certainly don't feel old and I stay active. Yes, I do run out of energy faster than I used to but I can still out work younger people than me. I'm going to build a house this year and I'll be doing quite a bit of the work though not as much as I did when I built the last one 25 years ago. Age is part mental and part physical. I've been pretty lucky on the physical side as you can only do so much before genetics take over. Unfortunately the area I'm building my house in will be far less conducive to going out dressed but then I haven't done that in quite a while.