According to new data from the Centers for Disease Control and Prevention, close to one in five high school age boys and 11 percent of all school-age children in the United States have been diagnosed with attention deficit hyperactivity disorder.
http://www.salon.com/2013/04/01/cdc_report_adhd_diagnosis_on_the_rise_in_the_united_states/
http://www.salon.com/2013/04/01/cdc_report_adhd_diagnosis_on_the_rise_in_the_united_states/