Check out my website: www.raw-food-health.netEveryone knows that exercise is good for us - it helps keep disease at bay and allows the average person to live longer. But can there be too much of a good thing? What about marathon and ultramarathon runners?Paul asks me if I agree with raw food health educator Don Bennet that people can damage their health by exercising too much. I take a look at the science around joint damage, DNA degradation, oxidative stress, heart problems related to endurance running, cycling, and other types of exercise. We look at the risk of atrial fibrillation, lifespan, and heart arrhythmias,