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Anxiety disorder

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Anxiety is a normal response to an unusual or stressful event; it is the psychological component of the "flight or fight" response.

Anxiety is considered abnormal when:

  • it is excessively severe or prolonged
  • it occurs in the absence of a stressful event
  • it impairs social, physical or occupational functioning

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