“电子设备发出的蓝光阻碍了诱发睡眠荷尔蒙抗黑变激素的产生，所以睡前最好不要玩手机。”

Everyone needs different amounts of sleep, but adults are generally thought to require a minimum of seven to eight hours a night. Teenagers are recommended to get more, about nine hours.

每个人都需要不同时间量的睡眠，但成人一般而言最少需要七到八小时。青少年最好睡得再多点，大概九小时的样子。

The proportion of people thought to be getting too little sleep had risen by a fifth since a "bedroom poll" conducted last year by the National Sleep Foundation.

而相比去年国际睡眠协会的“睡前调研”来说，睡眠严重不足的人数已经明显涨到20%。

The people surveyed were asked if they used a computer, tablet or smartphone in the two hours before bed. They were also asked about dreams and just one in ten agreed with the statement: "I would describe my dreams as pleasant."

被调查者均被问及是否睡前两小时使用过电脑、平板电脑或手机。同时还咨询了他们的梦境。只有10%的人声称：“我做了个美梦”。

Last week it was revealed opticians were warning that overuse of smartphones may be increasing people's risk of eye damage. Optician Andy Hepworth said: "Blue violet light is potentially hazardous and toxic to the back of your eyes.

上周，有验光师警告过度使用手机会增加眼睛损伤的风险。验光师安迪·赫普沃思说：“蓝紫光本身就对眼睛有害。”

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