They don't seem to be saying don't run at all but you shouldn't over do it like running in marathons. They don't even seem to be sure why it will lower your lifespan but I thought I would pass this information along for you runners out there.Running regularly has long been linked to a host of health benefits, including weight control, stress reduction, better blood pressure and cholesterol. However, recent research suggests there may a point of diminishing returns with running.
Too much running tied to shorter lifespan, studies find - CBS News
I like to just go walking myself either normal or speed walking. Running seems to be hard on your joints especially if you run on pavement. I have a neighbor that jogs on pavement a lot and she is having knee problems.
Do your run? If so how much? Do you feel you run too much? Do you have joint problems because of it?