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

Mar 12, 2025 · It means that it’s harder for you to control your attention or direct it to certain tasks. ADHD causes symptoms like difficulty focusing, trouble sitting still and impulsive behaviors.

ADHD symptoms start in childhood and can continue into adulthood but may look different in adults. Find and share ADHD resources using CDC's partner toolkit. ADHD symptoms can change over …

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.

Mar 7, 2025 · Attention-deficit/hyperactivity disorder, also called ADHD, is a long-term condition that affects millions of children. It often continues into adulthood. ADHD includes a mix of ongoing …

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

Sep 9, 2025 · People with ADHD may have difficulty focusing their attention on a single task or sitting still for long periods of time. Many people experience inattention and changes in energy levels.

Feb 22, 2024 · Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder that typically starts in childhood. This Primer summarizes the epidemiology, mechanisms, diagnosis and...

Oct 15, 2024 · ADHD is the most common problem seen in outpatient child and adolescent mental health settings. It is estimated that ADHD affects more than 5% of children. Boys are diagnosed with …

Attention deficit hyperactivity disorder (ADHD) affects people of all ages. Find out about ADHD symptoms and how ADHD is diagnosed and treated.