"The "catharsis hypothesis"--that aggression builds up inside us until it's healthily released--dates back to the Greeks, was revived by Freud, and gained steam during the "let it all hang out" 1960s of punching bags and primal screams. But the catharsis hypothesis is a myth--a plausible one, an elegant one, but a myth nonetheless. Scores of studies have shown that venting doesn't soothe anger; it fuels it."