An estimated 9 percent of all college students suffer from , characterized by the repeated reliving of a trauma through nightmares or recollection.

posttraumatic stress disorder (PTSD)

Explanation: Posttraumatic stress disorder (PTSD) is a psychiatric disorder that can occur in people who have experienced a traumatic event such as a natural disaster, a serious accident. The symptoms of PTSD can have a negative impact on your health, physical health, work, and relationships.

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

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answer; disconfirm the catharsis theory;