Illumistream Health video. Host is Dr. Matthew H. Erdelyi, Ph. D. ADHD is the most frequently diagnosed childhood behavioral disorder. A child who suffers from ADHD demonstrates these behaviors for six months or more. The exact cause of ADHD is still unknown. ADHD can be treated with behavior modification and medication. For people with ADHD the brain looks for more stimulation, which is more movement or changing the focus, which causes the sufferer to be overactive or inattentive. Boys are more likely to be diagnosed. There are three types of ADHD, first is HD, hyperactive impulsive, which are children who need attention or immediate rewards, second is ADD, Attention Deficit Disorder which seems like the child is daydreaming, and ADHD which is a combination of both. Video gives good information on ADHD. Video is good for parents and teachers who want to learn more about ADHD.