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Anxiety is an emotion which is characterized by an unpleasant state of inner turmoil and includes feelings of dread over anticipated events.[1][2][3] Anxiety is different than fear in that the former is defined as the anticipation of a future threat whereas the latter is defined as the emotional response to a real threat.[4] It is often accompanied by nervous behavior such as pacing back and forth, somatic complaints, and rumination.[5]
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