ADHD has also been classified as a behavior disorder. ... Characterized by poor attention and concentration, as well as difficulties staying awake. These children tend to fidget, yawn and stretch, and appear to be hyperactive in order to remain alert...
and providers for Attention Deficit Hyperactivity Disorder in the U.S. ADHD is more common in boys than girls, and it affects 3-5 percent of children in the United States. Disorders Learning Disorders Brain and Nerves Children and Teenagers Mental...
