For the heck of it, I plugged "anger" into Wikipedia -- fascinating stuff.
Anger is an emotion related to one's psychological interpretation of having been offended, wronged or denied and a tendency to undo that by retaliation. Videbeck describes anger as a normal emotion that involves a strong uncomfortable and emotional response to a perceived provocation. R. Novaco recognized three modalities of anger: cognitive (appraisals), somatic-affective (tension and agitations) and behavioral (withdrawal and antagonism).
It goes on to say that anger promotes adrenalin and noradrenalin, and I think most of the other stress hormones too (cortisol, etc). It also comes with increased heart rate and blood pressure.
I think... that's not necessarily all bad, if you can harness it. Probably channeling right away the increased bloodflow, heartrate, and stress/alertness hormones into heavy exercise (weight training, sprinting, etc) could let you use it, while getting some counterbalancing dopamine going on, and burning off some of the excess strength and aggression.
There's calming techniques, which can work, but you could also just use it. Anger isn't necessarily all bad, if harnessed correctly into, say, exercise and then routine work where moving at a fast pace and not needing good judgment can work for you.