Attention-Deficit Hyperactivity Disorder in Adults and Children`Attention Deficit Hyperactivity Disorder (ADHD) is a chronic neurobehavioral disorder characterized by persistent and often acute distractibility, hyperactivity, and impulsivity. It is a condition usually associated with children but in recent years the diagnosis of ADHD in adults has risen significantly. ADHD often coexists with a wide array of other psychiatric illnesses, including depression and bipolar disorder, thus complicating its assessment