Study says millions have 'rage' disorder

I think the "researchers" that did this study missed the real cause of road rage. It's caused by stupid assholes who drive 50 mph in the left-hand lane, because the slow lane is apparently the left lane where they come from, those stupid bunch of inbred, 2 bucket-of-chicken-eating, cousin-marrying, mouth-breathing, trailer-dwelling pederasts, who shouldn't be behind the wheel of a car in the first place. Dammit. Of course, "scientists" have their own explanations:

Coccaro said the disorder involves inadequate production or functioning of serotonin, a mood-regulating and behavior-inhibiting brain chemical. Treatment with antidepressants, including those that target serotonin receptors in the brain, is often helpful, along with behavior therapy akin to anger management, Coccaro said.

Wait - you can get drugs for having this? Cool. But wait, there's more. This disorder has a name:

For a couple of decades, intermittent explosive disorder, or IED, has been included in the manual psychiatrists use to diagnose mental illness, though with slightly different names and criteria. That has contributed to misunderstanding and underappreciation of the disorder, said Coccaro, a study co-author.

IED. Where have I heard that before?