In Exercise: For years, experts have said that one way to reduce your risk of heart attack is to get regular exercise. A new study indicates that if you don

For years, experts have said that one way to reduce your risk of heart attack is to get regular exercise. A new study indicates that if you don't follow that regular-exercise advice, a sudden bout of energetic activity can trigger a heart attack. If you don't exercise regularly, a sudden bout of energetic activity can trigger a heart attack, and may even kill you, according to a new study publishe ...Exercise