Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental psychiatric disorder that usually makes itself known before a child reaches 7 years of age, but may also be diagnosed at a later age.
Athyglisbrestur með ofvirkni (ADHD) er taugaþroskaröskun sem gerir yfirleitt vart við sig fyrir 7 ára aldur, en greinist þó einnig á unglings- og fullorðinsárum.