Attention-deficit/hyperactivity disorder (ADHD) (sometimes referred to as ADD for those without hyperactivity) is thought to be a neurological disorder, always present from childhood, which manifests itself with symptoms such as hyperactivity, forgetfulness, poor impulse control, and distractibility.

In neurological pathology, ADHD is currently considered to be a chronic syndrome for which no medical cure is available.

ADHD is believed to affect between 3-5 percent of the United States population, including both children and adults..

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