Mark A. Lau, PhD, R Psych, who worked with Zindel Segal for 11 years, has over 25 years experience as an internationally respected MBCT teacher, trainer and researcher. Mark is an MBCT mentor with the UCSD Mindfulness-Based Professional Training Institute, and is one of a handful of MBCT trainers who provide the 5-day MBCT Professional Training in North America. He also co-facilitates 5 day Cultivating Wellbeing retreats for physicians and their spouses. His academic work focuses on the mechanisms underlying MBCT’s effectiveness and evaluating effective methods of disseminating MBCT.