A 'Killer Commute': Traffic Linked To Heart Attacks

"In a study that gives new meaning to the concept of a 'killer commute,' researchers have concluded that people caught in traffic are three times more likely to suffer a heart attack within the hour than those who aren't tied up on the road... Their study was based on interviews with 691 volunteers who survived a heart attack from 1999 to 2001. The patients were asked to outline their activities during the four days before their attacks. Traffic posed a risk regardless of the mode of transportation."