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

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.

ADHD is a developmental disorder characterized by an ongoing pattern of one or more of the following types of symptoms: Inattention, such as having difficulty paying attention, keeping on task, or staying …

Mar 12, 2025 · ADHD is a type of brain difference that can make it hard to pay attention and/or sit still. It starts in childhood. Learn symptoms and treatments.

Find information on symptoms, diagnosis, treatment, data, research, and free resources.

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

Oct 17, 2023 · Does your child have trouble paying attention? This may be a symptom of attention deficit hyperactive disorder (often called ADHD or ADD). Read more.

The Adult ADHD Self-Report Scale (ASRS-v1.1) Symptom Checklist was developed in conjunction with the World Health Organization (WHO), and the Workgroup on Adult ADHD.

Attention deficit hyperactivity disorder (ADHD) is a condition characterized by inattention, hyperactivity and impulsivity. ADHD is most commonly diagnosed in young people.

Mar 7, 2025 · This condition affects children and may continue into adulthood. It can include having a hard time paying attention, being hyperactive and being impulsive.