The older you get, the less sleep you will need.
年龄越大，所需睡眠就越少。
The result shows that the less sleep you get, the less you want to socialize with others.
结果表明，睡得越少，你就越不想和别人交往。
Less sleep can give you dark circles under your eyes and you may feel sleepy during the daytime.
睡眠不足会让你有黑眼圈，白天可能还会感到困倦。
I can't think of a single study that hasn't found Americans getting less sleep than they ought to.
据我所知，没有哪项研究表明美国人得到了充足的睡眠。
The mice with the mutation needed less sleep than normal mice.
携带有突变基因的小鼠比正常鼠需要较少的睡眠。
We can get away with less sleep, but it has a profound effect on our cognitive.
我们可以少睡一点，但那将会会对我们的认知能力产生深刻的影响。
The less sleep you get, the lower your leptin levels-and the higher your ghrelin.
你睡得越少，你的致轻素越少——同时生长素升高。
The idea that we need less sleep as we get older is a myth, according to researchers.
研究人员认为，以前那种认为人上了年纪后睡眠时间会减少实际上是错误的。
They note that the males may be weaker, because they get less sleep due to the lights.
他们提道，由于灯光让雄鸟睡眠少了，所以它们身体更加虚弱。
When you get less sleep than that on consecutive3 nights, you begin to accrue4 “sleep debt.”
如果你连续数晚睡眠都少于这个时间，你就要开始负上“睡眠债”。
If you have to choose, I've found that it's better to get a little less sleep than too much.
如果必须要选一个的话，我认为睡眠少一些反而比睡的过长更有利。
The increase in work outside the home was offset by less housework and less spare time and less sleep.
工作时间的增加被较少的家务、休闲和睡眠时间抵消了。
The increase in work outside the home was offset by less housework-and less spare time and less sleep.
工作时间的增加被较少的家务、休闲和睡眠时间抵消了。
But now experts have found that it is 7 hours that brings optimal health - and that more or less sleep may do us harm.
然而专家发现，7小时才是黄金睡眠时间，睡多睡少都会有损健康。
The survey found that mothers who suffered PND reported less sleep and less help from family and friends than non-sufferers.
这个调查显示，据患产后抑郁症的母亲自己宣称，和没有患产后抑郁症的母亲相比，她们睡眠比较少，而且得到的家庭和朋友的帮助较少。
We may feel more energised in the summer and feel we can get by with less sleep but we need to recognise when to take a break.
在夏天，我们可能感到精神还好，少睡点问题不大，但我们必须知道休息时候就该休息。
Ever since I have started my new exercise regime, I have been requiring less sleep and have been waking up much earlier every morning.
自从开始新的健身计划，我就尽量少睡觉，每天早上都会早一些醒来。
The scientists were able to replicate the gene variation in a strain of mice and found that the mice needed less sleep than usual, too.
科学家能够在一种老鼠的身上复制这一基因变异，结果发现，这种老鼠需要的睡眠时间也比平常少了。
The researchers found that those children who had less sleep in their earlier years were at greater risk of having a higher Body Mass Index at age seven.
研究人员发现早年睡眠较少的那些七岁的孩子有较高的‘身体质量指数’的风险。
Because the cave fish may not need less sleep-they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.
因为穴居鱼可能并不需要睡得更少——它们可能需要保持清醒，以便更经常地在食物短缺和食物不常出现的环境中觅食。
Scientists have realized in recent years that children who get less sleep tend to do worse on a variety of health outcomes, including the risk of being overweight and obese.
她还说：“最近几年，科学家已经认识到睡眠少的孩子各种健康指标往往更差，包括容易肥胖等。”
Some harmed themselves and others contemplated suicide. The survey found that mothers who suffered PND reported less sleep and less help from family and friends than non-sufferers.
这个调查显示，据患产后抑郁症的母亲自己宣称，和没有患产后抑郁症的母亲相比，她们睡眠比较少，而且得到的家庭和朋友的帮助较少。
I don’t care who you are; you have time to “just do it” and chase something you want or need. You’ll just have to get less sleep, lose free time, and make lots of other sacrifices.
你将不得不少睡一点觉、失去一些空闲时间并且作出其他许多牺牲。
Surprisingly, less sleep, even as little as four hours a night, didn't significantly increase deaths for men and only lowered survival for women if they averaged less than four hours.
令人惊讶的是，如果睡眠的时间更少，甚至每晚只睡4小时，男性的死亡率并没有明显上升。 而如果女性的平均睡眠小于4小时，她们的寿命则会缩短。
When people fall in love they can think of nothing else. They might even lose their appetite and need less sleep, preferring to spend hours at a time daydreaming about their new lover.
人们陷入爱河时，会把所有其他事情抛在脑后，甚至茶饭不思得一直想着他的新爱人。
I definitely noticed that when I first went vegetarian in 1993, I needed less sleep to feel rested — that was during the time I was taking a massive courseload to graduate college in three semesters.
我回想起在1993年我开始倾向素食的时候，我明显睡的更少了，尤其考虑到当时正是我在大学的第三个学期，还是蛮紧张的状态。
Other studies have found that even infants in East Asia sleep about an hour less than European infants.
其他研究发现，即使是东亚的婴儿也比欧洲的婴儿少睡一小时左右。
Other studies have found that even infants in East Asia sleep about an hour less than European infants.
其他研究发现，即使是东亚的婴儿也比欧洲的婴儿少睡一小时左右。
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