科学美国人60秒 SSS 2013-10-28_在线英语听力室

(单词翻译:双击或拖选)

This is Scientific American 60 Seconds Science.

I'm Elly Wilkeson, got minute?

Our homes glow at night.

Lightbulbs, TVs and now computers, E-readers, tablets and smart phones expose people to an increasing amount of light after dark.

And the color of that light may influence the mood and brain function.

That's according to a study in the journal of Neural¹ Science.

Researchers looked the role of speciallize photo sensitive cells in the #retina#.

The cells called IPRGC are responsible for regulating² circadian rhythms.

And recent evidence suggests these cells may also play a role in mood and cognition.

To test how nocturnal light in color affects mood, the researchers expose hamsters to night time conditions for no light, red light, white light or blue light for 4 weeks each.

Hamsters exposed to red light at night had fewest brain changes associated with the pression in human while blue and white light had the worst effects on mood.

So late night work email may not be the only thing taking you off, the blue glow of your machine may also be getting you down.

The best by, shut down and get some shut eye.

Thanks for the minute, for Scientific American 60 Seconds Science.

I'm Elly Wilkeson.

点击

收听单词发音

1 neural
adj.神经的，神经系统的
参考例句：
The neural network can preferably solve the non- linear problem.利用神经网络建模可以较好地解决非线性问题。 The information transmission in neural system depends on neurotransmitters.信息传递的神经途径有赖于神经递质。

2 regulating
调节
参考例句：
In economic work, we should pay attention to opening up the source and regulating the flow from time to time. 在经济工作中，应该经常注意开源节流。 Water quality has played a lesser role in regulating industrial sources. 水质在管制工业污染源方面发挥的作用并不大。来自英汉非文学 - 环境法 - 环境法

在线英语听力室_免费在线英语听力学习网站

科学美国人60秒 SSS 2013-10-28