Anger is one of those electrical emotions that all of us experience — some more often or more easily than others — and different things provoke us and rile us up. It can be a healthy emotion up to a point. For instance, anger about a cause, an injustice or a political issue can motivate us to act for good. A lot of the most influential movements and changes in our country began with a feeling of anger or frustration.

But anger can also be very dangerous. Anger can get out of control and have negative effects on yourself and others, depending on how you deal with it and express it. The emotion manifests itself in different ways, and if you find yourself getting angry frequently and intensely, you can probably begin to notice physical symptoms first. Your heart beats...