中小学生睡眠不足,已经非止一日了。几乎所有经历过中小学阶段的人,睡不足,都是一个挥之不去的梦魇。据教育部的调查,全国77%的八年级学生睡眠时间等于和少于8小时,中部地区则到达82%。全国31%的三年级学生睡眠时间少于8小时,而中部则高达35%。(新京报,2011年12月12日)睡眠不足,根本原因就是负 Primary and secondary students lack of sleep, has more than a day. Almost all who have experienced primary and secondary school, sleep less, are a lingering nightmare. According to a survey conducted by the Ministry of Education, 77% of Grade 8 students in the country sleep less than 8 hours and sleep less than 82% in central China. 31% of the country’s third-grade students sleep less than 8 hours while the middle reaches 35%. (Beijing News, December 12, 2011) lack of sleep, the root cause is negative