My grandkids believe I'm the oldest thing in the world. And after two or three hours with them, I believe it, too.
He has a brain like Einstein's - dead since 1955
Like good wine, marriage gets better with age - once you learn to keep a cork in it.
In my retirement I go for a short swim at least once or twice every day. It's either that or buy a new golf ball.
I enjoy waking up and not having to go to work. So I do it three or four times a day.
An hour with your grandchildren can make you feel young again. Anything longer than that, and you start to age quickly.