Prevalence
A 2006 study of Rage Disorder led by Harvard University researcher Ron Kessler, Ph.D. suggests that the disorder is considerably more prevalent than previously thought.
Dr. Kessler’s team studied almost 10,000 individuals 18 years or older and found 7.3% of those interviewed reported having at least one explosive episode at some point in their life. Almost four percent of those studied reported having a rage episode at some point in the past year. Dr. Kessler suggested that those with rage disorder will have on average 43 outbursts in their lifetime.
Causes
Most people with rage disorder grew up in families where explosive behavior and verbal and physical abuse were common. Being exposed to this type of violence at an early age makes it more likely for these children to exhibit these same traits as they mature.
There may also be a genetic component, causing the disorder to be passed down from parents to children.
Treatment
Treatment is most effective when it involves a combination of psychotherapy and medication. Relaxation training has also been found to be an effective addition to these types of treatments.