Does athlets live longer or shorter than the average population? what effect it has on your life span if you exercise regularly?

No clear answer: Many professional athletes who push their bodies pass normal levels of exertion can actually cause damage to vital organs such as the heart. However, staying physically fit by constant low to moderate intensity activity is associated with longevity across many cultures. In combination with a proper diet, and a strong social network, it can add up to ten years of additional healthy living.