WHO: Too Much Screen Time Bad for Children
The World Health Organization (WHO) has released its first ever guidance on how much time young children should spend using electronic devices with screens.
On Wednesday, WHO announced that children under five years old should not spend more than one hour a day watching such devices. Less than that is better, officials say, and children under age one should not get any screen time at all.
"What we are cautioning on is over-use of those electronic screen times with young children," WHO expert Fiona Bull told reporters.
The new guidelines are somewhat similar to advice from the American Academy of Pediatrics. That group recommends children younger than 18 months should avoid screens other than video conferences over the internet. It says parents of children under age two should choose "high-quality programming" with educational value. Boys and girls should be able to watch the program with a parent and understand what they are seeing.
The guidelines say that children under five should also be physically active and get enough sleep to help develop good lifelong behaviors. This will help prevent diseases in later life.
"In this age group of under-5s, it is currently 40 million children around the world (who) are overweight. Of that (figure) 50 percent are in Africa and the southeast Asia region," Bull said. The Reuters news agency says that number represents 5.9 percent of all children worldwide.
Early childhood is a period of fast physical and mental development during which behaviors are formed and ways of doing things can be changed, noted WHO. Its guidelines come from evidence in hundreds of studies, many from Australia, Canada, South Africa and the United States.
"Sedentary behaviors, whether riding motorized transport rather than walking or cycling, sitting at a desk in school, watching TV or playing inactive screen-based games" are increasingly common, WHO said. It added that such behaviors have been linked to poor health
Some groups said WHO's screen time guidelines failed to consider the possible benefits of electronic media.
Andrew Przybylski is director of research at the Oxford Internet Institute at the University of Oxford. He told the Associated Press that WHO's screen time advice deals too much with the amount of screen time. He said it fails to consider the quality of the material being watched or how it is being used.
"Not all screen time is created equal," said Przybylski.
Britain's Royal College of Paediatrics and Child Health said the study data available was too weak to permit its experts to set any measure for the best level of screen time.
Max Davie is the college's Officer for Health Improvement. He told the AP the restricted screen time limits suggested by WHO do not seem proportionate to the possible harm done.
WHO did not go into much detail about the possible harm caused by too much screen time. But the guidelines did note that lack of sleep in children has been linked with increases in extra fat as measured by body mass index.
Shorter periods spent sleeping has been linked with more time spent watching television and playing computer games, it added.
I'm Dorothy Gundy.
1.electronic devices 电子设备
We ask all our passengers to switch off electronic devices for take-off and landing.
2.Less than 低于
Peterson was let go after less than two years.
3.poor health 健康状况不佳
His poor health incapacitated him for work.
4.rather than 而不是
The opposition appear to have chosen the path of cooperation rather than confrontation.
5.The guidelines say that children under five should also be physically active and get enough sleep to help develop good lifelong behaviors.
get enough sleep 获得充足睡眠
I never get enough sleep, and I feel tired all the time.
If I don't get enough sleep I get a terrible headache.
6.He said it fails to consider the quality of the material being watched or how it is being used.
fails to 未能
The State fails to recognize the heavy responsibility that parents take on.
Whoever fails to see this will make a big blunder.
周三，世卫组织宣布，5岁以下儿童每天观看电子设备的时间不应超过1小时 。有关官员称时间越短越好 。一岁以下的儿童根本不应该使用任何电子屏幕 。
世卫组织专家菲奥娜·布尔（Fiona Bull）告诉记者：“我们要警惕的是儿童过度使用电子屏幕 ?！?br />这份新指南与美国儿科学会的建议有些类似 。美国儿科学会建议18个月以下的儿童避免接触电子屏幕，网络视频通话除外 。该学会称，2岁以下儿童应该选择有教育意义的高质量节目 。孩子们应该跟父母一起观看节目，并理解观看的内容 。
布尔表示：“在5岁以下儿童的年龄组中，目前有4000万儿童超重，其中50%位于非洲和东南亚地区 ?！本萋吠干绫ǖ?，这一数字占全球儿童总数的5.9% 。
世卫组织指出，幼儿时期是身心快速发展的时期，在此期间，行为习惯得以养成，行事方式可以改变 。该组织的指南出自于数百项研究所提供的证据，其中很多研究来自澳大利亚、加拿大、南非以及美国 。
世卫组织表示：“久坐行为日益普遍，无论是乘机动交通工具而不是步行或是骑自行车、坐在课桌前，观看电视或玩电子游戏” 。该组织补充说，这类行为与健康不佳有关 。
安德鲁·普日比斯基（Andrew Przybylski）是牛津大学互联网研究所的研究主任 。他告诉美联社，世卫组织的屏幕使用时长建议过多考虑了屏幕的使用时间 。他说，该建议没有考虑到观看内容的质量，或电子屏幕的使用方式 。
普日比斯基表示：“同样的屏幕时间会有不同成效 ?！?br />英国皇家儿科和儿童健康学院表示，现有的研究数据过于薄弱，无法让专家设定最佳屏幕使用时间的标准 。
马克斯·戴维（Max Davie）是该学院健康改善部门的官员 。他对美联社表示，世卫组织建议的电子屏幕时间限制似乎与潜在的伤害不成比例 。
世卫组织没有详细地说明过度使用屏幕可能造成的伤害 。但是该指南也指出，儿童睡眠不足跟体重指数测量的额外脂肪增加有关 。