可可电台，每期节目一话题，让英语磨练耳朵的同时学到更多有益的小知识，丰富知识的同时受益于生活。

things you might have been told about sleep but aren’t completely true.

你可能听说过的有关睡眠的事，这些都不是完全正确的。

Insomniacs Have Difficulty Falling Asleep

失眠患者入睡困难

Insomnia is a complex sleep disorder. Difficulty falling asleep is just one of its four symptoms.

失眠是很复杂的睡眠障碍。难以入睡只是四大症状之一。

The others, according to the National Sleep Foundation are waking up early and not being able to fall back asleep, waking often, and waking up feeling unrefreshed.

根据美国国家睡眠基金会，其它症状是：醒得过早、醒来以后难以再次入睡、经常中途醒来、醒来之后疲惫无力。

There are things you can do to alleviate insomnia and other sleep problems.

你可以采取一些措施减轻失眠和其它睡眠问题。

The best treatment for the long-term usually isn’t medication; cognitive behavioral therapy may last longer.

但治疗长期失眠的最有效的方法不是药；认知行为治疗的效果也许会更持久一些。

【知识点讲解】

fall asleep v.入睡； 睡着；

例句：

As we fall asleep the amplitude of brain waves slowly becomes greater.

进入睡眠状态时，我们的脑电波振幅慢慢变大。

After changing the bed, I would fall asleep quickly.

换了床单，我很快就能睡着。

Poor sleepers take longer to fall asleep than good sleepers.

与睡眠好的人相比，睡眠不好的人要花更长的时间才能入睡。

according to 根据，按照； 据…所说； 如； 比照

例句：

The route that the boatmen choose varies according to the water level.

船夫选择的路线会随水位的变化而有所不同。

He advocates streaming children, and educating them according to their needs.

他提倡把学生按能力分班，因需施教。

According to the prosecution, the officers manufactured an elaborate story.

根据控方意见，官员们精心编造了事情经过。

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