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Your heart may pay the price.

It's possible to have a sudden cardiac event related to an adrenaline surge.

Study: Sporting events may lead to a spike in adrenaline for certain spectators and, in some cases, heart attacks.

Study demonstrates a link between cardiovascular health and post-traumatic stress disorder—a common illness among rescuers, volunteers and survivors of the terrorist attack.

Reduce your risks by eating fruits and vegetables, whole grains, low-fat dairy products, skinless poultry, fish, nuts and beans.