Judson Brewer, MD, PhD, is an internationally renowned addiction psychiatrist and neuroscientist. He is a full professor in the School of Public Health and Medical School at Brown University. His 2016 TED talk, "A Simple Way to Break a Bad Habit," has been viewed more than 20 million times. He has trained Olympic athletes and coaches, government ministers, and business leaders. His book Unwinding Anxiety was a New York Times bestseller.