The efficacy of venting anger is experimentally dubious

ReliablePlant - Angry? Researchers say that breathing beats venting

This is a trade journal that picked up a review of Lohr's work on anger venting and control. Lohr has worked to debunk the theory that venting one's anger (either on inanimate objects, to the person who made you angry, in sports, or in some other therapeutic setting) is effective for getting rid of it. Instead, venting the anger has been shown in experiments to just make people more resentful or hostile, essentially continuing the aggressive state. The theory is that the angry state would naturally dissipate on its own and that venting it may be restarting or reanimating it. This could contradict Freudian theories of repression and Aristotelian theories of catharsis. New research shows that getting rid of anger is more effective when people relax, 'take a time-out', breathe deeply and to let the angry state dissipate.