午夜小片|一级电影中文字幕|国产三级一区|精品久久久久久久国产性色av,国产一级黄色网,久久久久久久久久福利,久草超碰

首 頁 | 新聞英語 | 視聽英語 | 翻譯園地 | 實用英語 | 專欄作家 | 奧運英語 | 新詞新譯 | 書友天地 | 輕松英語  | 凈臉聯(lián)盟 | 英語論壇 | 少兒英語
您現(xiàn)在的位置: En_language tips > 輕松英語 > 一問到底 Dec 26, 2005
 





  How come tears come out of our eyes when we cry?

Tears  
How come tears come out of our eyes when we cry? Notes:
Tears flow from our eyes when we cry because they contain chemicals and hormones produced by our bodies.

When we become upset, our brains and bodies overreact and work overtime by producing chemicals and hormones.

Crying helps eliminate these extra chemicals that we don't need.

The chemicals and hormones disappear from our body through the form of tears. As our tears flow, they sooth our sadness or distress by withdrawing these chemical agents.

That is why many people feel calmer or more refreshed after crying--because the tears get rid of these hormones that are produced when we are sad, happy, or distressed.

 

 
 
 
Copyright by chinadaily.com.cn. All rights reserved
版權(quán)聲明:未經(jīng)中國日報網(wǎng)站許可,任何人不得復(fù)制本欄目內(nèi)容。如需轉(zhuǎn)載請與本網(wǎng)站聯(lián)系。
None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited.