Attention Deficit Hyperactivity Disorder (ADHD) What is it ADHD? Attention deficit hyperactivity disorder (ADHD) affects children and teens and can continue into adulthood. ADHD is the most commonly diagnosed mental disorder of children. Children with ADHD may be hyperactive and unable control their impulses. Or they may have trouble paying attention.  Children with ADHD often present with three main characteristics … Continue reading Attention Deficit Hyperactivity Disorder (ADHD)