Attention Deficit Hyperactivity Disorder (ADHD) Health Center
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Attention deficit/hyperactivity disorder (ADHD) is one of the most common mental disorders in children and adolescents. It also affects an estimated 4.4 percent of adults in the United States in a given year. Symptoms include difficulty staying focused and paying attention, difficulty controlling behavior, and very high levels of activity. Studies show that the number of children being diagnosed with ADHD is increasing.