Psychologist L. Alan Sroufe,  professor emeritus of psychology at the University of Minnesota’s Institute of Child Development: “Attention-deficit drugs increase concentration in the short term, which is why they work so well for college students cramming for exams. But when given to children over long periods of time, they neither improve school achievement nor reduce behavior problems. The drugs can also have serious side effects, including stunting growth.”  (via NYTimes.com)