iStock/ThinkstockBy DR. JENNIFER ASHTON, ABC News Senior Medical Contributor

Anger and physical exertion may be a deadly combination.

A new study suggests that an intense workout or run while you’re stressed or angry triples the risk of having a heart attack within an hour.

While it may sound counterintuitive since exercise is often prescribed as an antidote to stress, researchers say that vigorous exertion when you’re angry puts dangerous pressure on your heart.

Here’s my prescription:

• Stay fit and stay active. That is a major way you can reduce your risk of heart disease.

• Control your stress, anger and depression — all of them are bad for your heart.

• If you smoke, try everything in your power to quit.

Copyright © 2016, ABC Radio. All rights reserved.