Intermittent explosive disorder (sometimes abbreviated as IED) is a behavioral disorder characterized by explosive outbursts of anger, often to the point of rage, that are disproportionate to the situation at hand (e.g., impulsive screaming triggered by relatively inconsequential events). Throwing or breaking objects, road rage, domestic abuse, or temper tantrums may also be signs of intermittent explosive disorder. Despite IED being a chronic disorder, severity of outbursts may decrease with age.