Attention-deficit hyperactivity disorder

(redirected from Attention Deficiency Hyperactivity Syndrome)

Attention-deficit hyperactivity disorder (ADHD)

A condition in which a person (usually a child) has an unusually high activity level and a short attention span. People with the disorder may act impulsively and may have learning and behavioral problems.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
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