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

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.

The reason I exercise is for the quality of life I enjoy.

Over the years, Ive covered 22,000 miles.

If you look at body fat, it seems to increase with age, even though your weight does not. That's a physiological fact of aging, they say. Heck it is. It is an adaptive effect of aging.

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

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