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Definition of Disorder, anxiety

Disorder, anxiety: A chronic condition characterized by an excessive and persistent sense of apprehension with physical symptoms such as sweating, palpitations, and feelings of stress. Anxiety disorders have biological and environmental causes.

Anxiety disorders are very common, affecting one in 10 Americans.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=9967
Last Editorial Review: 6/14/2012

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