American author David Sheff spoke about his new book Clean, a myth-shattering look at drug abuse. Based on the latest research in psychology, neuroscience, and medicine, Clean is a leap beyond the traditional approaches to prevention and treatment of addiction and the mental illnesses that usually accompany it. Sheff, a journalist, has written for The New York Times, Rolling Stone, Playboy, Wired, Fortune, and National Public Radio’s “All Things Considered.”