Attention-Deficit/Hyperactivity Disorder, commonly known as ADHD, is divided into three subtypes. These subtypes are derived form the main characteristics of ADHD which are inattentiveness, impulsivity and hyperactivity. A person can have two of the three or all of the characteristics, in order to be diagnosed with ADHD. The subtypes are: predominantly inattentive, predominantly hyperactive-impulsive, and predominantly combined. There is no definite cause for ADHD, although some say it is hereditary. The dramatic growth in the number of children labeled as having ADHD has been largely man-made. Between the years 1988 and 1998 the distribution of Ritalin, a drug used to control ADHD, has increased by seven hundred percent. Even though scientists have yet to come to conclusive evidence of any type of "chemical imbalance" support groups, sponsored by the makers of Ritalin, claim that there is (Attention 5). Some have labeled Ritalin as the "children's cocaine;" highly addictive, easily retained and damaging side affects have shed light on the dangers of Ritalin (Attention 6). The American Psychiatric Association recognizes ADHD as a mental disorder; but is it really disorder or a controllable epidemic? Are children being over-diagnosed? Could hyperactivity in children be the result of poor health habits? Is Ritalin the answer to schools/teachers inability to teach at personal level? The objective of Ritalin is to enable children to have the capacity of concentration in school and be able to improve, however studies have shown that Ritalin has only been able to improve classroom behavior. In the long run there are no positive effects on either learning or academic achievement but more negative effects have been shown (Attention 4). .
Over the years the DEA has become concerned by the tremendous increase in the prescription of drugs for children with diagnosed ADHD/ADD. The use of Amphetamine drugs, used for the same purpose as Ritalin, has increased four hundred percent.