The question of effective treatment for alcohol- and substance-use disorders is more pressing than ever. According to a recent article in The New England Journal of Medicine, the number of Americans admitted to treatment programs for prescription opioids more than quadrupled from 2002 to 2012. Deaths from heroin overdoses nearly quadrupled from 2002 to 2013, the Centers for Disease Control and Prevention reported. In addition, an estimated 18 million Americans have alcohol use disorder, according to the N.I.A.A.A., and a study published in JAMA last year found that the number of Americans who drank to excess was rising. To read more from Gabrielle Glaser, click here.