Can Marathons Temporarily Hurt the Heart?

http://www.medicinenet.com/guide.asp?s=rss&k=DailyHealth&a=174903
Can Marathons Temporarily Hurt the Heart?
Title: Can Marathons Temporarily Hurt the Heart?
Category: Health News
Created: 10/31/2013 12:36:00 PM
Last Editorial Review: 11/1/2013 12:00:00 AM