We are involved in youth testing internationally. We want to try to prove without a shadow of a doubt the relationship between physical fitness and health, not just physical fitness and ability to perform.

Aerobic dancing is already adjusting to injury problems and will probably phase out to some extent.

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.

I have not missed a day from work because of illness since 1956.

Since then, I have not missed five consecutive days in getting some type of aerobic exercise, mostly jogging.

[Walking's] overwhelming advantage is that it can be done by anyone, anytime, anywhere-and it doesn't even look like exercise.

After 26 years, I am still practicing what I preach.