Martha Sweezy, PhD, is Assistant Professor in Psychiatry at Harvard Medical School, part-time, and Research, Training, and Curriculum Consultant at the Center for Mindfulness and Compassion, Cambridge Health Alliance, where she consults and supervises in a study using Internal Family Systems (IFS) groups to treat posttraumatic stress disorder. She teaches on IFS, shame, and guilt nationally and internationally, and has a private psychotherapy practice in Northampton, Massachusetts. Dr. Sweezy has published articles in peer-reviewed journals and has coedited or coauthored several books and treatment manuals on IFS.

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