A study from Harvard Medical School researchers shows that the risk of having a heart attack is significantly higher following an outburst of anger — the more intense the outburst, the higher the risk.The most intense angry outbursts—those that qualify as “rage,” complete with throwing things and threatening others—were linked to a more than four-fold higher risk of having a heart attack. More typical angry outbursts were associated with about twice the risk.

via Study: Anger And Heart Attacks Strongly Linked – Forbes.