Anger seems to be the one emotion that does most harm to the heart.by Parker on TwosAnger seems to be the one emotion that does most harm to the heart.Being prone to anger was a stronger predictor of dying young than were other risk factors such as smoking, high blood pressure, and high cholesterol.Social isolation—the sense that you have nobody with whom you can share your private feelings or have close contact—doubles the chances of sickness or death.