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SSS 2012-01-11

时间:2012-02-17 05:28来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

 This is Scientific Americans -60 seconds science .I'm Steve Murskey.Got the minute?

    People with high blood pressure are often told to watch the salt, and it's long been far that hypertension related to  excess salt is caused by the salt increasing in the volume of the blood, which in turn puts extra pressure on the blood vessel1 walls . But going back to 1960s-70s some  reseachers thought  that the salt might be have a different effect. Now longtime hypertension researchers Arwin and Howerlong Scoumbers at the Boston university school of medicine have analysed the studies in the field of the  published reviewal articles explaining what they think salt && really is.It stimulates2 the sympathetic nervous system to produce a  adrenalin,and it seems the adrenalin that construct the arteries3 and caused the high blood pressure, not excess fluid volume .The reviews in the general hyperattention. Physicians have upsetted the nervous system involvement of the hypertension that's badly enough to cause kidney failure ,fluid decreacing diarect and sort of common treatment in those severe cases. It's new analyses that implies the researcher should look for additional hypertension treatments that focuses on the nervous system .
   Thanks for the minute from Scientific Americans-60 seconds science. science being Steve Murskey.

点击收听单词发音收听单词发音  

1 vessel 4L1zi     
n.船舶;容器,器皿;管,导管,血管
参考例句:
  • The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
  • You should put the water into a vessel.你应该把水装入容器中。
2 stimulates 7384b1562fa5973e17b0984305c09f3e     
v.刺激( stimulate的第三人称单数 );激励;使兴奋;起兴奋作用,起刺激作用,起促进作用
参考例句:
  • Exercise stimulates the body. 运动促进身体健康。 来自《简明英汉词典》
  • Alcohol stimulates the action of the heart. 酒刺激心脏的活动。 来自《现代英汉综合大词典》
3 arteries 821b60db0d5e4edc87fdf5fc263ba3f5     
n.动脉( artery的名词复数 );干线,要道
参考例句:
  • Even grafting new blood vessels in place of the diseased coronary arteries has been tried. 甚至移植新血管代替不健康的冠状动脉的方法都已经试过。 来自《简明英汉词典》
  • This is the place where the three main arteries of West London traffic met. 这就是伦敦西部三条主要交通干线的交汇处。 来自《简明英汉词典》
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