Gym & Moods

I've always been so much more confident & happier when I workout. I don't know what it is. Something must get released into your system or something. But last night after I got home from the gym, I was folding laundry and talking to Mike and he said, " Are you happier when you go to the gym?" I said, well yea, I do feel better about myself after a good workout and have SO much more energy, why? He said because I seem to be in a much better mood. So even if nothing great comes from this body wise, at least I know it IS improving my moods! Especially when hubby points it out!