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

So I've broadened the fitness concept to make it one of moderation and balance.

Exercise is a journey, not a destination. It must be continued for the rest of your life. We do not stop exercising because we grow old - we grow old because we stop exercising.

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

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.

Over the years, Ive covered 22,000 miles.