人一生中有三分之一的时间是在睡眠中度过,5天不睡眠人就会死去,可见睡眠是人的重要生理需要。国际精神卫生组织于2001年发起了一项全球性的活动——将每年的3月21日定为“世界睡眠日”。“世界睡眠日”范围遍及全球60多个国家,其目的就是要引起人们对睡眠重要性和睡眠质量的关注。 One-third of human life time spent in sleep, 5 days without sleep will die, we can see that sleep is an important physiological needs of people. In 2001, the International Mental Health Organization launched a global event - setting “21 March every year as World Sleep Day” on March 21. “World Sleep Day ” covers more than 60 countries around the world, its purpose is to arouse people’s concern about the importance of sleep and sleep quality.