Far too many times over the next 12 to 15 years, it was brought to my attention that people who followed my exercise guidelines exactly but ignored their diet, their weight and their cigarette smoking had heart attacks at age 55.

Over the years, Ive covered 22,000 miles.

I think investments in general related to the exercise industry are going to be good for a long time.

I don't criticize weight training - as long as it is not a substitute for aerobic training.

You have to run 75 to 100 miles a week if you expect to break the four-minute mile.

It's easier and more cost effective to maintain good health, than to regain it once it's lost.

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.