It is estimated that 5% of American adults, or 18 million people, are diagnosed with ADHD, and anywhere from 2% to 16% of school aged children as well.
ADD/ADHD is one of the most common childhood mental illnesses and can last into adolescence and adulthood. Patients have difficulty focusing and paying attention, controlling behavior and impulsivity, and sometimes problems with learning and listening. The resulting behavior can make school and life at home very difficult for the patients and their families. It is believed that a combination of genetic predisposition and environmental factors cause it.
Treatment is usually effective with stimulant medications (ex. Concerta, Ritalin, Strattera) and psychotherapy with behavioral modification.