ns, hyperactivity, and impulsive behaviors. Many aspects of ADD and ADHD are not understood. It is a developmental disorder, which affects 3-5% of all children, although in some school districts 10-50% of children in the school are diagnosed and being treated for the disorder (Russel, Jeanie p.111). In an article written by B. Bower for Science News, he states that according to a study in North Carolina "most 9-16-year-olds receiving Ritalin or other stimulants don't exhibit attention-deficit hyperactivity disorder". Some evidence suggests that biochemical disturbances in the functions of
             ...