New uses for psychedelic drugs offer potential breakthroughs for patients with post-traumatic stress, working with trained therapists to guide the experience and open perspectives into a patient's state of mind. Rachel Yehuda, Ph.D., Professor of Psychiatry and Neuroscience / Icahn School of Medicine in Mount Sinai and Director, Center for Psychedelic Psychotherapy and Trauma Research has been at the forefront of trauma research for three decades and discusses this new development.