http://entertainment.howstuffworks.com/which-athletes-live-longest.htm
“the cardiovascular and health benefits of endurance and mixed sports are greater” than the health benefits of power sports, at least in terms of longevity.
In some studies of former collegiate athletes, those who became sedentary and took to their couches after graduation lived no longer than people who had never participated in college sports.
http://well.blogs.nytimes.com/2012/12/19/live-as-long-as-an-olympian/