新奇事件簿 睡前看视频对儿童睡眠不利

New research shows that it is bad for children to watch TV, tablet¹ or mobile² phone screens before bedtime. Researchers from the University of Colorado found that "screen time" before sleeping damages children's health. The researchers looked at over 60 different studies on how screen time affects children. They said: "Of more than five dozen studies looking at children aged³ from 5 to 17 around the world, 90 per cent have found that more screen time is associated with delayed bedtime, fewer hours of sleep, and poorer sleep quality." Screens are becoming smaller and smaller, so children can look at them in bed. More than 75 per cent of children in the study had some kind of screen in their bedroom.

新的研究表明，睡前看电视，平板电脑或手机屏幕对孩子不利。来自科罗拉多大学的研究人员发现，睡前观看电子屏幕损害孩子的健康。研究人员查看了关于睡前玩电子设备对儿童影响的60多份不同研究。他们说：“在60多份查看世界各地5岁到17岁儿童的研究中，90%的研究发现，玩电子设备意味着睡觉时间延迟，睡眠时长减少，睡眠质量变差。”屏幕越来越小，孩子们可以在床上看。研究中75%的儿童卧室里有某种类型的电子屏幕。

Children need a lot more sleep than adults. Pre-school children need 10 to 13 hours, pre-teens should get between nine and 12 hours, and teenagers should be getting between eight and 10 hours a night. The researchers highlighted⁴ three main reasons how screens affect children's sleep. First, the light from screens upsets a child's body clock. The light from screens getting into children's eyes before they sleep tricks their body into thinking it is still daytime. Second, children often watch videos of things that excite them or interest them. This keeps their brain active, so they take longer to sleep. Finally, when children are watching screens, they are not exercising. Children need physical activity to make them tired.

儿童需要的睡眠时间比成年人更多。学前儿童需要10至13个小时的睡眠，青春期前的儿童需要9至12个小时，青少年需要8至10小时的睡眠。研究人员强调了电子屏幕影响儿童睡眠的三个主要原因。首先，屏幕的光线扰乱了儿童的生物钟。睡前从电子屏幕射入孩子眼睛的光线会让身体误以为仍然是白天。第二，孩子们观看的视频通常会让他们激动，或兴趣盎然。这让他们的大脑保持活跃，所以需要更长时间才能入睡。最后，当孩子们观看电子屏幕的时候，他们就不会锻炼。儿童需要体育活动才能感到疲倦。

1 tablet   

n.平板，门牌，笔记簿，碑，匾

参考例句：

• Take a tablet and your headache will go.吃一片药你的头就不疼了。
• Fill a glass with water and dissolve this tablet in it.倒杯水把药片放进去溶解了。

2 mobile   

adj.可移动的，易变的，机动的；n.运动物体

参考例句：

• The old lady sits on a mobile chair every morning.那位老妇人每天上午坐在一把可携带使用的椅子上。
• She's much more mobile now that she's bought a car.自从她买了汽车后，活动量就大多了。

3 aged   

adj.年老的，陈年的

参考例句：

• He had put on weight and aged a little.他胖了，也老点了。
• He is aged,but his memory is still good.他已年老，然而记忆力还好。

4 highlighted   

adj.突出的v.强调( highlight的过去式和过去分词 )；将（文本的某部份）用彩笔做标记；将（计算机屏幕的某区域）增强亮度；使醒目

参考例句：

• He highlighted the case of Harry Farr, 25, who was executed for cowardice in 1916. 他特别举出了哈里·法尔1916年25岁时因怯懦而被处决的例子。 来自《简明英汉词典》
• A Move dialog would then appear with the current document highlighted. 这时“移动”对话框便弹出，并且突出显示当前的文档。 来自About Face 3交互设计精髓