The healthiest way to deal with anger is to express it in an assertive, but non-aggressive manner.
According to the American Psychological Association, “You have to learn how to make clear what your needs are, and how to get them met, without hurting others.”
While it is sometimes necessary to suppress your anger—such as not lashing out violently when you are upset—unexpressed anger is actually an unhealthy reaction. It can cause a person to have high blood pressure, depression or hypertension. Suppressed anger can also cause a person to be perpetually cynical or hostile.
Even if you express anger in a constructive way, sometimes the feelings are still there. Rather than fume for hours, try relaxation tips such as deep breathing and positive visualization. You can also repeat a phrase such as “I am at peace,” or “I am relaxed.