Once you are successful, there's a very seductive rhythm at work that keeps you wanting to outdo yourself. By the end of 'Spirit' I felt like I didn't want to get into that trap. It almost makes you cartoon-like.
By exercise. I'll tell you one thing, you don't always have to be on the go. I sit around a lot, I read a lot, and I do watch television. But I also work out for two hours every day of my life, even when I'm on the road.