Dramatic, I know. But I saw this article title from Nature Clinical Practice today, Emotional stress from watching soccer can increase the risk of cardiac events.
Unfortunately, I can't read the article without handing over money. One reason why open access is a wonderful thing that should be universally implemented. What good is publishing research, or doing research for that matter, if noone can read it.
Anyway...this is nothing new. We all know the stereotype about sports-induced heart attacks. But there is actually evidence of such a thing.