What is ADHD definition?

Attention-deficit/hyperactivity disorder (ADHD) is a chronic condition that affects millions of children and often continues into adulthood. ADHD includes a combination of persistent problems, such as difficulty sustaining attention, hyperactivity and impulsive behavior. read more

ADHD is more common in boys, whose impulsivity and hyperactivity may appear as disruptive behavior. Inattentiveness is a hallmark of ADHD in girls, but because they aren't often disruptive in the classroom, they may be harder to diagnose. read more

ADHD, predominantly hyperactive-impulsive type presents with excessive fidgetiness and restlessness, hyperactivity, difficulty waiting and remaining seated, immature behavior; destructive behaviors may also be present. ADHD, combined type is a combination of the first two subtypes. read more