Why do we shout in anger?

i do shout at my kids..to make them move faster..for me shouting is to voice out what ever you feel deep inside and thats shouting can me you calm sometimes..

some say its a way to release their anger.. but shouting to others when your angry is a bad way.. those person whose doing it have stress.. maybe

This has been something I've wondered about all my life. I never shout in anger. When I feel negative (sad, angry, afraid, frustrated, tired, embarassed, guilty, bad, sorry) I try my best to control myself, because in the heat of those negative emotions, I don't want to do something I'll regret, but not being perfect I may, in which case, I want to be able to back up my actions with an explanation of why I did what I did at that time. A lot of people shout because they are not in control of their emotions. I feel anger etc. like everyone else, but I don't want to take it out on other people, or use that anger to threaten others. I refuse to do that. My husband used to shout in anger, and when he saw how much it scared me, and how calm I could be when angry, he decided to change his ways, and follow my example. We have a much happier marriage because we don't shout at eachother.