孩子们每天花费太多的时间面对着屏幕以及教育者和家长的批评——凯萨家庭基金会去年的一项调查显示,这一时间平均每天是7小时38分钟。
Children spend far too much time in front of a screen, educators and parents lament - 7 hours 38 minutes a day on average, according to a survey by the Kaiser Family Foundation last year.
这些参与者每天平均吸烟数量为17支,研究人员让他们在一小时内接收显示在屏幕上的不同信息,同时使用磁共振技术扫描他们的脑部。
The participants, who smoked an average of 17 cigarettes per day, underwent fMRI scanning for one hour while different messages appeared on a screen.
哈佛医学院的查尔斯·泽斯勒医生说,“这项研究显示,在睡前的关键一小时内大量使用发光屏幕,”
"This study reveals that light-emitting screens are in heavy use within the pivotal hour before sleep, " said doctor Charles Czeisler of Harvard Medical School.
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