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【English Digest】(38)啤酒对大脑的影响  

2016-05-13 17:21:34|  分类: 【英语】听力 |  标签: |举报 |字号 订阅

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    Under normal circumstances, each of your brain cells allows various substances, such assodium1calcium2 and potassium to permeate3 its outer cell membrane4.

Once inside the brain cell, these substances help give the cell stimulus5 it needs to function properly. Then they leave the cell and allow another set of these substances to begin the cycle again.
The millions of cells that make up your brain are continually allowing these substances topenetrate6 their membranes7 and then expelling these same substances later. All of this action allows the brain to interpret and transport messages.
Alcohol consumption prevents sodium from being able to cross brain cell membranes. Once even this part of the cycle breaks down, brain functions become impaired8.
You can notice the affects of this break down after a single drink. Even if you’ve had just one drink, your ability to respond to stimulus decreases and your reaction time slows down.
If you’re driving, you might see a car stop, and know that you need to slam on the brakes, but the pathway in your brain that processes this information and causes you to respond to it will be working in slow motion.
sodium:钠
calcium:钙
potassium:钾
cell membrane:细胞膜
slam:猛烈抨击;使劲一推
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