Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder in children and teens that is characterized by inattention, hyperactivity, and impulsivity. Boys are more likely to be diagnosed in early school years. Children with ADHD struggle with time management, relationships, self-esteem, and organization. Symptoms persist into adulthood and can include anxiety, low self-esteem, forgetfulness, anger issues, impulsivity, and substance abuse. ADHD is caused by genetic and neurological factors such as chemical imbalances and less activity in areas of the brain controlling attention. Treatment involves medications, behavioral therapy, special education, social skills training, and psychotherapy.