Professor Farren graduated from University College Dublin and completed residency training in general medicine and psychiatry. He was Assistant Professor at Yale University. He completed his Ph.D in Trinty College Dublin. He was Associate Professor at the Mount Sinai School of Medicine, and Trinity College Dublin. He has written numerous scientific articles on addiction and mental health. He published 2 books: Overcoming Alcohol Misuse; and The U Turn: A Guide to Happiness. He is the winner of the 2012 Psychiatry Award from the Royal Academy Of Medicine in Ireland. He is the co-founder and Medical Director of UControlHealth.
- The U Turn: A Guide to Happiness 2013
- Overcoming Alcohol Misuse, A 28-Day Guide 2011