Why It's Harder to Sleep in New Place
Have you ever had trouble sleeping in a new place?
Lots of people do. And now researchers from Brown University in Rhode Island think they know why.
They found that one-half of the brain "remains more awake" than the other half when people are trying to sleep in a new place.
This appears a case of the brain keeping people ready for trouble in a new place, the researchers said.
The sleep findings were reported in Current Biology and by Brown University.
In their report, the researchers said many people report they have a harder time sleeping the first night at a hotel or other places outside their home.
They call it, "first-night effect."
"In Japan they say, ‘if you change your pillow, you can't sleep,''' said Yuka Sasaki, one of the report's authors. "You don't sleep very well in a new place. We all know about it."
The researchers measured brain waves for 35 volunteers over two nights in a laboratory. The two nights were a week apart.
They found during the first night the left hemisphere of the brain was more active than the right hemisphere. This was during the first deep-sleep period, the researchers said.
Sasaki said a lot of questions remain.
Researchers did not keep measuring brain waves all night long. So, they don't know if the left hemisphere keeps "watch" all night. Or whether it "works in shifts" with the right hemisphere later in the night.
They also do not know why the extra brain activity, at least during the first phase of deep sleep, is always on the left hemisphere.
For some, this research may be calming. It is good to know that our brain is "looking out for us," in a new place.
But it may not help with sleep. That extra brain activity, at least according to this new research, makes it harder to get the sleep people need to wake up well rested in the morning.
I'm Bruce Alpert.
1.the other 另一个
Peony casts the other flowers into the shade.
2.brain waves 脑电波
Both the REM sleep and the brain waves happen at the same time.
3.all night long 整晚
The guard did not quit his post all night long.
4.in shifts 轮班工作
We work in shifts around the clock.
1.It is good to know that our brain is "looking out for us," in a new place.
look out 当心；照料
Look out! I will get even with you.
小心, 我回头找你算帐 。
When you have business with a wolf, look out for tricks.
2.But it may not help with sleep. That extra brain activity, at least according to this new research, makes it harder to get the sleep people need to wake up well rested in the morning.
wake up 起床；苏醒
I wish you would wake up!
Call him if the manager doesn' t wake up in time.
相信大多数人都是这样的 。美国罗得岛州布朗大学的研究员们找到了这一问题的根源 。
该研究的作者之一佐佐木优香（Yuka Sasaki）表示，“在日本人们常说，‘如果换了枕头就会睡不着 。’”她说，“陌生环境会影响睡眠，我们都知道这一点 。”
研究人员对35位志愿者进行了两次晚间睡眠状况的测量 。两次测量时间相距一周 。
他们发现，第一晚大脑左半球比右半球活跃 。研究人员表示，这是第一次深度睡眠的测量结果 。
研究人员并没有整晚测量脑电波 。因此，不知道整晚是左脑一直在“值班”，还是随后与右脑进行轮班 。
对某些人来说，这项研究结果让他们喜出望外 。知道大脑在陌生环境中“为我们站岗放哨”的确是件值得高兴的事情 。
但是这并不能改善睡眠 。据这项新研究显示，这一大脑活动让人们难以获得充足睡眠 。