据日本国立公众卫生院调查,30％以上的日本人因劳动条件等原因处于慢性疲劳状态。这项调查是1999年7～8月对随机选择的居住在日本爱知县的4000名15～65岁的人进行的问卷调查(有效回答率为75.4％)。结果,感觉疲劳的人达60％,30％以上的人连续半年感觉疲劳,即处于慢性疲劳状态。慢性疲劳的原因以工作占首位,其次多与日常生活有关。在年龄层方面多为35～54岁的壮年,并且慢性疲劳的人饮用保健饮料的 According to a survey conducted by the National Institute of Public Health in Japan, more than 30% of Japanese people are chronically fatigued due to labor conditions and other reasons. The survey was conducted in July-August 1999 on a random survey of 4,000 15- to 65-year-olds living in Aichi prefecture, Japan (effective response rate was 75.4%). As a result, 60% of the people feel tired, and 30% or more of them feel tired for six consecutive months, that is, they are in a state of chronic fatigue. Causes of chronic fatigue take the first place in the work, followed by more than daily life. In the age group, most of them are 35 to 54 years old, and chronic fatigue people drink health drink