Isn’t stimulant use on the increase?
Stimulant use in the United States has increased substantially over the last 25 years. A recent study saw a 2.5–fold increase in methylphenidate between 1990 and 1995. This increase appears to be largely related to an increased duration of treatment and more girls, adolescents, adults, and inattentive individuals (in addition to those individuals with both hyperactivity and inattentiveness ⁄ attention deficit) receiving treatment.
