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  1. Attention-Deficit/Hyperactivity Disorder (ADHD) - NIMH

    ADHD is one of the most common disorders diagnosed in children. Symptoms begin in childhood and usually continue into the teen years and adulthood.

  2. What is ADHD? - Psychiatry.org

    Attention-deficit/hyperactivity disorder (ADHD) is one of the most common mental disorders affecting children. Symptoms of ADHD include inattention (not being able to keep focus), hyperactivity (excess …

  3. What Is ADHD? Meaning, Signs, Causes, And How To Cope

    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, …

  4. Attention deficit hyperactivity disorder - Wikipedia

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

  5. About ADHD | Attention-Deficit / Hyperactivity Disorder (ADHD)

    Nov 25, 2025 · Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders of childhood. Symptoms start in childhood and often last into adulthood.

  6. Attention-deficit/hyperactivity disorder (ADHD) in children

    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 …

  7. ADHD: Symptoms, Types, Testing, and Treatment - WebMD

    Mar 10, 2024 · ADHD stands for attention deficit hyperactivity disorder. It’s a brain disorder that affects how you pay attention, sit still, and control your behavior. It happens in children and teens and can...

  8. Attention-Deficit/Hyperactivity Disorder (ADHD) - Cleveland Clinic

    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.

  9. ADHD (Attention Deficit Hyperactivity Disorder): What Is It?

    Sep 9, 2025 · ADHD (Attention Deficit Hyperactivity Disorder): What Is It? ADHD symptoms may manifest differently based on gender. However, social expectations may affect the way these …

  10. Attention deficit hyperactivity disorder (ADHD) - Harvard Health

    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 …