Health Tip: Does Your Child Have Symptoms of ADHD?

(HealthDay News) -- Attention-deficit/hyperactivity disorder (ADHD) affects a child's ability to perform in school and form relationships.

The disorder is characterized by primary traits including inattentiveness, over-activity, impulsivity, or a combination, the U.S. National Library of Medicine says.

The agency offers this list of classic symptoms of ADHD:

• Carelessness in school work

• Losing personal items and those needed for school.

• Problems paying attention for long periods.

• Difficulty listening and following instructions, and problems with organization.

• Acting forgetful, and getting frequently distracted.

• Difficulty sitting still or performing quiet activities.

• Talking excessively, often out of turn.