I always fely older than my age when I was younger because I was very independant and ambitious.
Now I feel much younger, because I'm still playful and my body feels the same as when I was in my twenties. (It may not after the baby is born, though. I'll have to see).
***EDIT*** by saying my body feels the same, I mean that I don't have any aches and pains, etc. I didn't mean that it feels the same when other people rub on it...lol.