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

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 …

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 …

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 …

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 …

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

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.

Hyperactivity refers to excessive movement such as fidgeting, excessive energy, not sitting still, and being talkative.

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

ADHD (attention-deficit/hyperactivity disorder) is a condition that affects how your brain works. Despite its name, ADHD doesn’t mean that you lack attention.