mory andEmotion in real Life: PTSD

PTSD (Post Traumatic Stress Disorder)
What is PTSD?
Post Traumatic stress disorder (PTSD) is an emotional illness that is classified as an anxiety disorder and usually develops as a result of a terribly frightening, life-threatening, or otherwise highly unsafe experience. PTSD sufferers re-experience the traumatic event or events in some way, tend to avoid places, people, or other things that remind them of the event (avoidance), and sensitive to normal life experiences (hyperarousal).
Another part of the PTSD can be a C-PTSD ( complex post traumatic disorder) resulting from prolonged exposure to a traumatic event or series afterward.Usually PTSD occurs within more than one-third of youths who are exposed to community violence (for example, a shooting, stabbing, or other assault).

What are the symptoms?
There are physical consequences of being traumatized. For example, research shows that people who have been exposed to an extreme stressor sometimes have a smaller hippocampus. Also, whether or not a traumatized person goes on to develop PTSD, they seem to be at risk for higher use of cigarettes, alcohol, and marijuana.

What causes PTSD?
Any trauma may cause PTSD. Such events often include either experiencing or witnessing a severe accident or physical injury, receiving a life-threatening medical diagnosis, being the victim of kidnapping or torture, exposure to war combat or to a natural disaster, exposure to other disaster (for example, plane crash) or terrorist attack, being the victim of rape, mugging, robbery, or assault, enduring physical, sexual, emotional, or other forms of abuse, as well as involvement in civil conflict.

Briefly explain how memory and emotion relate to PTSD. 

Memory and Emotion are related to PTSD in a way of simple meanings. For example, the people who watched the World Trade Center fall down remember the day of falling down, and those memories are kept in their memories. Through this they react their emotions from the long term memory that had been inserted in their brain hippocampus. From this they have fear subscribed in their memories.