Paul W. Andrews is an assistant professor in the Department of Psychology, Neuroscience & Behaviour at McMaster University in Canada. He has a PhD in Biology from the University of New Mexico and a law degree from the University of Illinois at Urbana-Champaign. He writes about the evolution of depression and the costs and benefits of antidepressants, often with J. Anderson Thomson, Jr., MD. His research has been widely featured in the media, including the New York Times Sunday Magazine and Scientific American Mind.