NIMH » Attention-Deficit/Hyperactivity Disorder
www.nimh.nih.gov › health › topicsWhat are the signs and symptoms of ADHD? Some people with ADHD mainly have symptoms of inattention. Others mostly have symptoms of hyperactivity-impulsivity. Some people have both types of symptoms. Many people experience some inattention, unfocused motor activity, and impulsivity, but for people with ADHD, these behaviors: Are more severe