手机影响睡眠 睡前别玩手机！

More than nine out of 10 young people expose themselves to the blue light from smartphones and tablets， before bed， causing problems with sleep.

90%的年轻人睡前都有玩智能手機或平板电脑的习惯，这其实会影响你的睡眠。

A new survey also shows more than 28m people in the UK regularly get no more than seven hours sleep a night.

一项新的研究发现，英国约2800万人睡眠不足7小时。

Prof Richard Wiseman， who commissioned the YouGov poll described the findings as “extremely worrying”.

英国著名的大众心理学教授理查德·怀斯曼是这次调查的发起人，他形容这次的结果发现“非常令人揪心”。

Of the 2，149 adults questioned， 78% said they used electronic devices before going to bed. This rose to 91% among the 18 to 24-year-olds questioned in the survey.

在被调查的2149位成人中，78%表示他們睡前会使用电子设备。其中18-24岁的调查者中睡前玩手机的人数飙升到91%。

Getting less than seven hours sleep a night is below the recommended guidelines， and is associated with a range of problems， including an increased risk of weight gain， heart attacks， diabetes and cancer.

睡眠不足7小时低于正常值，会带来一系列的健康问题，包括体重增加、心脏病、糖尿病以及癌症。

“The blue light from these devices suppresses the production of the sleep-inducing hormone melatonin， so its important to avoid them before bed time，” said Prof Richard Wiseman， from the University of Hertfordshire.

“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。”赫特福德大学的理查德·怀斯曼教授说。

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%。