Post-Traumatic Stress Disorder (PTSD) is an acquired psychiatric condition that occurs after exposure to a dangerous or life-threatening event. It is characterized by persistent fear- and stress-related symptoms, such as nightmares, flashbacks, depression, anxiety and guilt. These symptoms can interfere significantly with patients' lives and in some cases can be debilitating. One of the most frequent causes of PTSD is being a victim of a violent, interpersonal assault.