Addicted to Aggression? Brain Protein May Hold the Answer

With apologies to Homer Simpson, we might prepare ourselves to hear, “It’s true! I’m an aggression-holic! I just can get enough aggression-hol!” Such a confession would be in keeping with a new neuroscientific finding—a protein known to accumulate in the brain’s reward center in response to pleasurable experiences, such as sex and other “highs,” also appears to be associated with aggression.Of course, the protein isn’t called aggression-hol.