Yeah. Physical work helps too. I think depression may just be stagnant unexpressed emotional energy that turns toxic inside the human system. You have to get it out somehow.

I had a girlfriend who was chronically depressed. She was like a black hole. The only things that would get her out of it were making love or playing a couple of hours of ping pong at the local "Y". The physical activity got the depression out. She'd be okay for a few hours after that...or maybe for a day or two.