A stress reaction that involves either physical or psychological behavior manifested days or weeks after incident is called Post-traumatic stress disorder (PTSD).
People who have went through a traumatic incident, such as a natural disaster, a catastrophic accident, a terrorist attack, battle, , or who have been threatened with death , or significant injury, may develop posttraumatic stress disorder (PTSD), a psychiatric disease.
In the past, PTSD has gone by a variety of labels, including "shell shock" during World War I and "battle exhaustion" following World War II, but it does not only affect combat veterans.
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