Why It's Harder to Sleep in New Place

Have you ever had trouble sleeping in a new place?

你在新地方睡过觉吗？

Lots of people do. And now researchers from Brown University in Rhode Island think they know why.

很多人都有。现在罗德岛布朗大学的研究人员认为他们知道原因。

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.

他们发现，当人们试图在一个新的地方睡觉时，一半的大脑“保持清醒”比另一半的大脑。

This appears a case of the brain keeping people ready for trouble in a new place, the researchers said.

研究人员说，这似乎是一个大脑让人们在一个新的地方准备好迎接麻烦的案例。

The sleep findings were reported in Current Biology and by Brown University.

目前生物学和布朗大学都报道了睡眠的发现。

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."

研究人员在他们的报告中说，许多人报告说，他们在家外的酒店或其他地方的第一晚很难入睡。              

他们称之为“初夜效应”。

"InJapanthey 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."

“在日本，他们说，‘如果你换枕头，你就睡不着，’”该报告的作者之一Yuka Sasaki说。你在新地方睡得不好。我们都知道。”

The researchers measured brain waves for 35 volunteers over two nights in a laboratory. The two nightswerea week apart.

研究人员在实验室里对35名志愿者在两个晚上的脑电波进行了测量。两个晚上相隔一周。

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.

他们发现在第一个晚上，大脑的左半球比右半球更活跃。研究人员说，这是第一次深度睡眠。