Attention deficit hyperactivity disorder (ADHD) is one of the most common childhood disorders that can persist into adulthood. It is caused by deficiencies in two neurotransmitters in the brain. Symptoms include fidgeting, distraction, excessive talking, and disorganization. Treatment includes medication, behavioral therapy, education, and lifestyle changes like diet and exercise. Managing ADHD requires a team approach with parents, teachers, doctors, and the patient working together.