What causes people to get angry?

There are many common triggers for anger, such as losing your patience, feeling as if your opinion or efforts aren't appreciated, and injustice. Other causes of anger include memories of traumatic or enraging events and worrying about personal problems.

You also have unique anger triggers, based on what you were taught to expect from yourself, others and the world around you. Your personal history feeds your reactions to anger, too. For example, if you weren't taught how to express anger appropriately, your frustrations might simmer and make you miserable, or build up until you explode in an angry outburst.

Inherited tendencies, brain chemistry or underlying medical conditions also play a role in your tendency toward angry outburst.