久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

  Home>News Center>Life
         
 

Lack of sleep major threat to teenagers' health
(Xinhua)
Updated: 2004-05-28 11:18

Lack of sleep has become an invisible threat to the health of teenagers, according to a recent survey by the China Youth and Children Research Center (CYCRC).

The survey, conducted among 5,846 students in Beijing, Shanghai,Chongqing and seven other cities, showed that 10.4 percent of those under 12 years old slept less than eight hours a day.

Among children aged 13, 14 and 15, there were 22.1 percent, 33.1 percent and 44.6 percent, respectively, sleeping less than eight hours per day, revealed the survey.

This was much lower than doctors recommendations that children and teenagers get up to at least nine hours of sleep, said the survey.

Experts blame it mainly on China's highly competitive education system. Even children in their early teens are made to focus on tests to enter prestigious high schools.

Parents and teachers usually put great pressure on children and teenagers to make them study hard, but leave them little time for relaxation. But the problem of lacking sleep has become so serious that experts are worried that it will harm students' memory, thinking and even physical growth.

Sun Hongyan, a CYCRC official, said that children's physical growth was mostly completed in their sleep.

"The time between 10 p.m. to 1 am is the most active period for the secretion of growth hormones and the metabolism of body cells. Invisible damages caused by the lack of sleep at this period, which is afflicting one tenth of primary school kids and one third of middle school students, cannot be made up by sleep in other times," Sun said.

Though children's physical growth may be slowed by lack of sleep, mentally they age prematurely and start behaving as grown-ups with adult concerns, she said.

"Sometimes I really want to give up, because I worry too much,"complained a sixth-grader in a "grown-up tone" of voice.

Sun reminded parents, schools and the whole society to pay more attention to this problem, hoping they take specific moves to ensure children get sufficient sleep and to provide them a healthy environment for growth.

 
  Today's Top News     Top Life News
 

China: Foreign troops should leave Iraq before Jan 2005

 

   
 

3 children found decapitated in apartment

 

   
 

Release of new auto policy 'within days'

 

   
 

Unsafe blood collection targeted

 

   
 

Britain berated over Dalai visit

 

   
 

US: Cleric tried to start terror camp

 

   
  Tragedy puts avant-garde architect in limelight
   
  Season to flaunt bold style imminent
   
  Italy sets strict pizza guidelines
   
  To shoot or not to shoot?
   
  Anonymous workers in non-existent industry
   
  Shanghai's rive gauche
   
 
  Go to Another Section  
 
 
  Story Tools  
   
  Feature  
  Maggie Cheung snatches Best Actress Award  
Advertisement
         
主站蜘蛛池模板: 国产一级a毛片高清 | 国产欧美久久久精品 | 97在线免费观看视频 | 亚洲天堂男人 | 牛人盗摄一区二区三区视频 | 亚洲精品98久久久久久中文字幕 | 日韩视频在线观看中字 | 国产一级爱c片免费播放 | 欧美综合成人网 | 日本高清va不卡视频在线观看 | 自拍自录videosfree自拍自录 | 日韩不卡一区二区三区 | 精品国产精品久久一区免费式 | 日本www高清| 国产精品久久久久久久专区 | 日本三级全黄三级a | 国产精品久久不卡日韩美女 | 黄色三级毛片 | 另类欧美日韩 | 日韩一级欧美一级 | 国产成人综合网在线播放 | 4455永久在线毛片观看 | 99久久99热久久精品免费看 | 九九色综合网 | 国产成人综合在线 | 欧美高清一区二区 | 国产三级在线播放线 | 久草在线资源网站 | 日本三级成人中文字幕乱码 | 美国免费三片在线观看 | 亚洲精品自产拍在线观看 | 看久久久久毛片婷婷色 | 在线看国产视频 | 91精品欧美综合在线观看 | 久久精品国产91久久综合麻豆自制 | 欧美一级看片 | 国产一区在线免费观看 | 国产一进一出视频网站 | 理论在线看 | 国产精品香蕉一区二区三区 | 亚洲精品久久片久久 |