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出典:『Wikipedia』 (2011/06/16 17:15 UTC 版)

英語による解説

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Generalized anxiety disorder (GAD) is an anxiety disorder that is characterized by excessive, uncontrollable and often irrational worry about everyday things that is disproportionate to the actual source of worry. This excessive worry often interferes with daily functioning, as individuals suffering GAD typically anticipate disaster, and are overly concerned about everyday matters such as health issues, money, death, family problems, friend problems, relationship problems or work difficulties. Individuals often exhibit a variety of physical symptoms, including fatigue, fidgeting, headaches, nausea, numbness in hands and feet, muscle tension, muscle aches, difficulty swallowing, bouts of difficulty breathing, difficulty concentrating, trembling, twitching, irritability, agitation, sweating, restlessness, insomnia, hot flashes, and rashes and inability to fully control the anxiety. (ICD-10). These symptoms must be consistent and on-going, persisting at least six months, for a formal diagnosis of GAD to be introduced. Approximately 6.8 million American adults experience GAD, and 2% of adult Europeans, in any given year, experience GAD.