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Hyperarousal

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Updated January 26, 2009

Definition: A specific cluster of PTSD symptoms. This cluster includes symptoms that stem from experiencing high levels of anxiety, such as:

  • Having a difficult time falling or staying asleep.
  • Feeling more irritable or having outbursts of anger.
  • Having difficulty concentrating.
  • Feeling constantly "on guard" or like danger is lurking around every corner.
  • Being "jumpy" or easily startled.

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