Anger triggers a sense of certainty as well as a sense of control.

Here getting emotional is not bad for you if you look at the case of anger. The more they are displaying anger, the lower the stress responses.

Anger can sometimes be adaptive. We're showing for the first time that when you are in a situation that is maddening and in which anger or indignation are justifiable responses, anger is not bad for you.

Having that sense of anger leads people to actually feel some power in what otherwise is a maddening situation.

When you get really mad, you often have very large cardiovascular responses.

When you get really mad, you also have really large cardiovascular responses.