A Kansas City doctor and former marathoner discusses research on the potential effects of extreme running. This video originally published Oct. 13, 2016. Joe Robertson The Kansas City Star
A Kansas City doctor and former marathoner discusses research on the potential effects of extreme running. This video originally published Oct. 13, 2016. Joe Robertson The Kansas City Star

Question hangs over extreme runners: Can too many miles hurt the heart?

October 13, 2016 11:52 AM