Forties are all good. I was able to sport a bikini and look decent. Still had plenty of energy. Fifties are a little less energy and gaining weight is a bitch!!!! I like to eat and drink and not work out all the time. Guess I need to start working out, getting too pudgy. I am shooting for being able to still ride at the motocross track when I turn 60. That being said....my back is jacked right now. No track for me this week Just turned 57, so I have a pretty good chance at the track thing. Hoping to be able to waterski this summer. Haven't been able to do that since a bad car accident 3 years ago. Started skiing at 5 years old on the Parker Strip. Forties will be a blast!!!! Smarter and wiser is a good thing. Happy Birthday.