About Read about ADHD, its types, symptoms, possible risk factors, screening, treatment, and CDC's work.

Jan 23, 2026 · ADHD is the most commonly diagnosed mental disorder in children. Find out the symptoms in children and adults, types, causes, diagnosis, treatment, and outlook.

Sep 3, 2025 · ADHD, or Attention Deficit Hyperactivity Disorder, is a neurodevelopmental disorder that affects both children and adults. It is characterized by signs such as difficulty with focus, …

Attention deficit hyperactivity disorder (ADHD) [1] is a neurodevelopmental disorder characterised by symptoms of inattention, hyperactivity, impulsivity, and emotional dysregulation that are excessive …

Jul 30, 2026 · ADHD affects not only a child’s ability to pay attention or sit still at school, but it also affects relationships with family and other children. Children with ADHD often show behaviors that …

NIMH researches attention-deficit/hyperactivity disorder (ADHD). Find resources on the signs and symptoms of ADHD and potential treatments and therapies.

Jan 25, 2023 · Symptoms can range from mild to severe. Many adults with ADHD aren't aware they have it — they just know that everyday tasks can be a challenge. Adults with ADHD may find it …

Mar 12, 2025 · ADHD (attention-deficit/hyperactivity disorder) is a type of brain difference that can make it hard to pay attention, finish tasks and sit still. Treatment can help.

Learn about ADHD including symptoms, risk factors, treatment options and answers to your questions.

Children and Adults with Attention-Deficit/Hyperactivity Disorder (CHADD) is the nation's leading nonprofit organization serving people affected by ADHD.