The PTSD diagnosis originated as a description of symptoms combat veterans experienced after exposure to battle. Veterans, when they returned from combat, continued to be troubled by loud or sudden noises triggering recurring images of being again on the battle field. The diagnosis has now been expanded to include persons who have been confronted with actual or threatened death or serious injury to themselves or significant others. Life threatening physical and emotional injuries that often lead to the development of PTSD include: severe auto accidents; observing a significant other being killed or injured; sexual or physical assault; and exposure to life threatening natural events. When confronted with these sorts of traumatic events, the individual experiences intense fear or helplessness. The body’s’ natural instinct is to block memories of the trauma, because the memories produce anxiety and fear. In extreme form, this effort to repress memories can result in amnesia. Unfortunately events that occur in real life that are reminders of the trauma inevitably result in intrusive, distressing recollections of the traumatic event. It is as though the traumatized individual is being forced to watch a movie being replayed of the traumatic incident, over and over again in their memory. It is common for the traumatized person to attempt to avoid thoughts, feelings, or conversations associated with the trauma. Activities, places, or people that arouse recollections of the trauma are avoided. Typically, such persons are unable to recall an important aspect of the trauma. The individual experiences a sense of being chronically anxious and on high alert. When these symptoms interfere with the individual’s ability to enjoy formerly enjoyed activities or result in detachment or withdrawal from significant relationships, it is time to seek professional help. PTSD symptoms include sleep problems, irritability or outbursts of anger, difficulty concentrating, and easily triggered startle responses. Effective therapy involves exploring the memories of these traumatic events in a safe environment that focuses on restoring a sense of power and safety to the individual.