I have been through various fitness regimes. I used to run about five miles a day and I did aerobics for a while.

Now I say that if you run more than 15 miles a week, it's for something other than aerobic fitness. Once you pass 15 miles, you do not see much further improvement.

I run six-to-eight miles a day, plus weights and aerobics in the lunch hour. I also lie a lot, which keeps me thin.

My inventing time is all done under the influence of aerobic exercise. Basically, I do all my thinking while I run.

Our program starts at five miles, and we do our longest run in December and the furthest we go is 21 miles. It's just not necessary to run 26 miles in practice. It kind of tears your body down. With the adrenaline and crowds you'll be able to make the rest of it.

I used to run about two miles every day, but now with 'Dancing With the Stars,' the running is over.