By Jack Challem
Copyright © 1997 by Jack Challem, The Nutrition Reporter
All rights reserved.
Most people know that physical activity is good for health. However, in one of the ironies of biology, regular and strenuous exercise can increase formation of dangerous free radicals. These rogue molecules damage cell membranes, proteins, and deoxyribonucleic acid (DNA) - the material that forms your genes. The long-terms consequences may be faster aging and an increased risk of cancer.