My guest for this episode is Dr. Carl Erik Fisher!  Dr. Fisher is an addiction physician and bioethicist, and the author of the recently published book The Urge: Our History of Addiction - an intellectual and cultural history of addiction, which is interwoven with his own experiences as an addiction psychiatrist at Columbia and as an individual in recovery.  His academic writing has been published in numerous prestigious medical and ethics journals, and his essays have been widely published, including recently in The New York Times.  Dr. Fisher is a fellow of the American Psychiatric Association and of the American Society of Addiction Medicine, and he is an appointed member of the American Psychiatric Association’s Council on Psychiatry and Law.