Understanding Intermittent Explosive Disorder & Addiction
Intermittent explosive disorder (IED) is an impulse control disorder characterized by recurrent episodes of impulsive, aggressive, violent behavior or angry verbal outbursts that are grossly out of proportion to the situation. These episodes are not premeditated and are not committed to achieve a tangible objective such as money, power, or intimidation. IED affects an estimated 2.7% of the U.S. adult population and is associated with significant impairment in relationships, occupational functioning, and legal involvement. The explosive episodes typically last less than 30 minutes and are followed by remorse, embarrassment, or distress.
The co-occurrence of IED and substance use disorders is extremely high, with studies showing that up to 60% of individuals with IED also meet criteria for a substance use disorder. The relationship is bidirectional: IED creates intense emotional distress and interpersonal consequences that drive substance use, while substances -- particularly alcohol -- lower the threshold for explosive episodes and worsen aggressive behavior. Alcohol is particularly implicated because it impairs prefrontal cortex function, disinhibiting the aggressive impulses that individuals with IED already struggle to control. Stimulants like methamphetamine and cocaine also increase aggression and reduce impulse control.
At Trust SoCal, our dual diagnosis program addresses both the impulse control deficits of IED and the substance use disorder through integrated treatment that combines anger management, impulse control training, and comprehensive addiction therapy.