Jon Kabat-Zinn, PhD, is internationally known for his work as a scientist, writer, and mindfulness meditation teacher engaged in bringing mindfulness practices, especially mindfulness-based stress reduction (MBSR), into the mainstream of medicine and society. He is professor of medicine emeritus at the University of Massachusetts Medical School, where he was founding executive director of the Center for Mindfulness in Medicine, Health Care, and Society, and founder (in 1979) and former director of its world-renowned Stress Reduction Clinic. Prominently featured in the Bill Moyer's PBS special Healing and the Mind in 1993, the clinic and its research has continually demonstrated that most participants in its programs achieve long-lasting improvements in both physical and psychological symptoms, as well as major positive changes in health attitudes and behaviors. More than 200 medical institutions nationwide and abroad now use the clinic's mindfulness-based stress reduction (MBSR) model to teach mindfulness meditation.