I know a few ultra marathoners and they are in a league of their own. It is an addiction, the "high" they get running long and hard is difficult for them to give up and they are ultra competitive with themselves and other ultras. This study doesn't surprise me as these guys are so intense they run through serious injury and illnesses, they have no limits to their devotion to running.
That being said, I doubt the average runner, even those that run full marathons are at risk of dying before an overweight, out of shape person who lives a sedentary and unhealthy lifestyle. Not too many ultras on these boards nor do I think any of us should worry about doing too much exercise, most of us struggle to get in our 3 days a week, 30 minute workouts.
"It's not the years in your life that count. It's the life in your years." - Abe Lincoln
| Pounds lost: 25.6