I burned out my drawing hand by using it too much. The common word for it is writer's cramp. The fancy words for it are focal dystonia. The symptom in my case was a pinky finger that went spastic when I tried to draw.
Scott AdamsOne Dilbert Blog reader noted that current research shows that happiness causes success more than success causes happiness. That makes sense to me. There's plenty of research about people having a baseline of happiness that doesn't vary much with circumstances. And given that happy people are typically optimistic, energetic, and fun to work with, I can see how happiness would lead to success.
Scott Adams