This article is a reprint of an interview conducted by Zachary Siegel with Marc Lewis, Ph.D. about his book, "The Biology of Desire: Why Addiction is Not a Disease." The article was originally featured on the addiction and recovery website The Fix. As I looked down at my prepared questions, thinking they were juvenile or topical or pathetic, to ask Dr. Marc Lewis about his new book, The Biology of Desire: Why Addiction is Not a Disease, he stopped me and said, “Before we get started, do you mind if I ask what kind of . . .