Anger is a completely normal, usually healthy, human emotion.
It can make you feel as though you're at the mercy of an unpredictable and powerful emotion. This fact sheet is meant to help you to understand and get a handle on handling anger. Signs and Causes of Anger Like other emotions, anger is accompanied by physiological and biological changes. When you feel angry, your heart rate and blood pressure go up, as does the level of your energy hormones, adrenaline and noradrenaline. Anger can be caused by both external and internal events.