PTSD is a severe reaction to a traumatic event that involves re-experiencing the event through dreams, recollections or flashbacks. Social support plays a role in protecting people from developing PTSD.
Review Date 5/10/2020
Updated by: Fred K. Berger, MD, addiction and forensic psychiatrist, Scripps Memorial Hospital, La Jolla, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.