(单词翻译:单击)
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。
More Sleep Is Better for You
睡得越多越好
There could be such a thing as too much sleep. The amount of sleep we need varies by person and also changes as we age. Harvard researchers found that a lot of sleep (9 hours or more) is linked with poor sleep quality. So don’t aim for more sleep—even on the weekends. Aim for better sleep.
睡太多可能会导致睡眠过度。每个人需要的睡眠时间都不一样，且会随着年龄增长而变化。哈佛大学研究员发现，睡得过多（9个小时以上）和睡眠质量差有关。所以不要以睡得更久为目标——即便是在周末，而是要力图提升睡眠质量。
Alcohol Helps You Sleep
酒精有助于入睡
Alcohol, the original nightcap, can help most people fall asleep. However, it also can cause you to wake up more during the night, wrecking your sleep quality. Consider drinking non-alcoholic beer before bed instead.
人们过去常在睡前喝酒，大多数人都会在酒精作用下很快入睡，但是，酒精也会导致你在夜间醒来多次，破坏睡眠质量。考虑一下睡前喝点无酒精的啤酒吧。
【知识点讲解】
aim for 计划， 打算；
例句：
His friends were all crying aim for him.
朋友们都在为他助威.
We aim for 80 % contrast as a general rule of thumb.
我们认为的最佳的对比度是80%,这可以作为一般的经验值.
We aim for a quick turnover of stock in our stores.
我们的目的是要加速本百货店的库存周转.
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