More than simply a mood disorder, Intermittent Explosive Disorder seems so completely atypical and unreasonable. Biomedical, data driven answers appear promising.
This Intuniv post is the second busiest in my 7 years of reportage at CorePsych - rewritten with a collection of all Intuniv posts linked for easy review.
A little-known mental disorder marked by episodes of unwarranted anger [-sounds like ADD/ADHD at first glance] is more common than previously thought...