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  1. Hyperactivity: Causes, Diagnosis, and Treatments - Healthline

    Aug 27, 2019 · Hyperactivity is often a symptom of an underlying mental or physical health condition. One of the main conditions associated with hyperactivity is attention deficit hyperactivity disorder...

  2. Hyperactivity - Wikipedia

    Hyperactivity is associated with several medical and psychiatric or psychological conditions and can be a side effect of certain medications. Hyperactivity is a hallmark of attention deficit hyperactivity …

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

    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.

  4. 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.

  5. 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 …

  6. Hyperactivity: Causes, Diagnosis, Treatment, and More

    Aug 8, 2022 · Hyperactivity is a physical state in which a person is unusually active. It involves excessive movement, talking, and restlessness. These behaviors can be part of attention deficit …

  7. Hyperactive ADHD: Symptoms and treatments - Medical News Today

    Sep 27, 2023 · Attention deficit hyperactivity disorder (ADHD) has three subtypes. Hyperactive ADHD is a subtype that mainly causes high energy, restlessness, and impulsive behavior.

  8. Hyperactivity: MedlinePlus Medical Encyclopedia

    Apr 1, 2024 · Hyperactivity means having increased movement, impulsive actions, a shorter attention span, and being easily distracted.

  9. Understanding hyperactivity

    Hyperactivity is constantly being active in ways that aren’t appropriate for the time or setting. It’s not caused by a lack of discipline or intelligence.

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

    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.