A world class athlete spends a lot of time performing intense exercises. Correct me if I'm wrong, but I assume that these intense exercises causes significant damage to the athlete's cells, but with proper nutrition, they are able replenish these cells with stronger ones. This process of destroying and re-creating cells causes cell divisions to approach the Hayflick limit faster, and hence shorten the athlete's life expectancy.
I also heard that caloric intake causes the number of cell divisions to approach the Hayflick limit faster. World class athletes generally consume substantially more calories than the average individual, which also contributes to a shorter life expectancy.
So for this reason, is the life expectancy of world class athletes generally shorter than the average individual? And what about casual athletes?
Edit If world class athletes live longer lives than the average individual, why is this so despite performing activities that expedite the deterioration of telemeres, and hence, approach the Hayflick limit faster?