One out of five Americans suffer from chronic pain and a new approach to treatment could transform their lives. Judith Warner speaks with Drs. Yoni Ashar and Tor Wager, neuroscientists who are at the forefront of a new way to understand and treat chronic pain that looks to the brain rather than the body as pain’s source. The treatment is relatively new but growing rapidly in acceptance, thanks in part to a groundbreaking study published in the Journal of the American Medical Association earlier this year in which two-thirds of participants who were treated with the new approach were pain free or nearly pain free after a month. Dr. Ashar is a clinical psychologist and an assistant professor at the University of Colorado Anschutz medical campus; Dr. Wager is a neuroscientist and a professor at Dartmouth.