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Definition

Posttraumatic stress disorder (PTSD)

Posttraumatic stress disorder (PTSD) is a phenomenon in which victims of major catastrophes or strong personal stressors feel long-lasting effects that may include re-experiencing the event in vivid flashbacks or dreams.


Posttraumatic Stress Disorder is a psychological reaction that occurs after experiencing a highly stressing event, such as wartime combat, physical violence or a natural disaster. It is usually characterized by depression, anxiety, flashbacks, recurrent nightmares and avoidance of reminders of the event. Individuals can feel emotionally numb, especially with people who were once close to them. Also called delayed-stress disorder or posttraumatic stress syndrome.

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