To discover why some survivors of trauma experience PTSD and some don't, scientist Rachel Yehuda must convince a community of Holocaust survivors to let her study them. Rachel Yehuda is a professor of psychiatry and neuroscience at the Icahn School of Medicine at Mount Sinai and Director of the Mental Health Patient Care Center at the James J. Peters Bronx Veterans Affairs hospital. Her research on PTSD has included both human populations and animal models, neuroendocrinology, and genomic and molecular biological studies of trauma.Learn more about your ad choices. Visit megaphone.fm/adchoices