Perhaps I could come up with a reason why everthing in my life is like exercise. But right now I think my work is like exercise in that when I am not teaching classes I find myself dreading them a little. I feel nervous, inadequate and all those things. However when I actually am in class I really enjoy it and after feeel quite good after. I feel the same about exercise. When I am not doing it I find it hard to get motivated but once I do I really enjoy it and feel great after.