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SSS 2010-11-16

时间:2010-12-07 06:52来源:互联网 提供网友:seniorboy   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American’s 60-Second Science. I’m Christopher Intagliata. Got a minute?

That old saying, "she died of a broken heart?" It's not just poetry. Studies have shown that some people who lose a loved one may be at greater risk for a heart attack or cardiac death. And new research, presented this week at the American Heart Association's Scientific Sessions, offers clues for why.

The subjects in the study included 78 volunteers who'd recently lost a spouse1 or child at a hospital, and a control group whose relatives survived the hospital stay. The average age of both groups was about 65. Researchers monitored the participants’ heart rates and rhythms for 24 hours, once within two weeks of the family death and again six months later.

Soon after their loss,the bereaved2 had an average heart rate of 75 beats per minute, five beats more than the controls and twice as many episodes3 of tachycardia: rapid heartbeats. They also scored higher on depression and anxiety tests, as you'd expect, which could be behind the physiological4 changes.

The good news: after six months, heart rates and rhythms were back to normal. But if you've just lost someone and feel physical heartache, the researchers recommend seeing a doctor. It could save someone else from grieving5.

Thanks for the minute. For Scientific American’s 60-Second Science, I’m Christopher Intagliata.


点击收听单词发音收听单词发音  

1 spouse Ah6yK     
n.配偶(指夫或妻)
参考例句:
  • Her spouse will come to see her on Sunday.她的丈夫星期天要来看她。
  • What is the best way to keep your spouse happy in the marriage?在婚姻中保持配偶幸福的最好方法是什么?
2 bereaved dylzO0     
adj.刚刚丧失亲人的v.使失去(希望、生命等)( bereave的过去式和过去分词);(尤指死亡)使丧失(亲人、朋友等);使孤寂;抢走(财物)
参考例句:
  • The ceremony was an ordeal for those who had been recently bereaved. 这个仪式对于那些新近丧失亲友的人来说是一种折磨。
  • an organization offering counselling for the bereaved 为死者亲友提供辅导的组织
3 episodes 1db57fa55fb5d3266c7c3e1655670db6     
插曲,片断( episode的名词复数 ); 一集
参考例句:
  • The novel deals with the romantic episodes of her early life. 小说叙述了她早期生活的浪漫插曲。
  • Three episodes have been telescoped into a single programme. 把叁集的内容压缩成了一个节目。
4 physiological aAvyK     
adj.生理学的,生理学上的
参考例句:
  • He bought a physiological book.他买了一本生理学方面的书。
  • Every individual has a physiological requirement for each nutrient.每个人对每种营养成分都有一种生理上的需要。
5 grieving f8b4e8f6db13980c0e4b92b083cac71a     
感到悲痛,伤心( grieve的现在分词 ); 使…伤心
参考例句:
  • They are still grieving for their dead child. 他们还在为死去的孩子伤心。
  • The news brought no solace to the grieving relations. 这个消息并未给悲痛的家属带来什么安慰。
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