Zindel Segal, Ph.D. is a cognitive psychologist, a specialist on depression and one of the founders of Mindfulness-based Cognitive Therapy (MBCT). A professor of psychiatry at University of Toronto, Segal combines mindfulness with conventional cognitive behavioral therapy, which teaches patients to observe sadness or unhappiness without judgment. Presently he is the Cameron Wilson Chair in Depression Studies in the Department of Psychiatry at the University of Toronto. He is also Head of the Cognitive Behaviour Therapy Clinic of the Mood and Anxiety Disorders Program in the Clinical Research Department at the Centre for Addiction and Mental Health.