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VOA慢速英语 2007 0912a

时间:2007-12-19 03:22:35

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This is the VOA Special English Health Report.

When one person gains weight, their close friends often follow. Researchers have just offered evidence in a study that says obesity1 appears to spread through social ties. But the findings might also offer hope.

 
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If friends help make obesity acceptable, then they might also be influential2 in losing the fat. The researchers note that support groups are already an effective tool in dealing3 with other socially influenced problems, like alcoholism.

The findings appeared in the New England Journal of Medicine. The researchers used information collected from twelve thousand people. It was collected between nineteen seventy-one and two thousand three as part of the Framingham Heart Study.

The information was highly detailed4. There was even contact information for close friends of the people in the study.

The researchers examined more than forty thousand social ties. They found that a person's chances of becoming severely5 overweight increased by fifty-seven percent if a friend had become obese6.

A sister or brother of a person who became obese had a forty percent increased chance of becoming obese. The risk for a wife or husband was a little less than that.

Nicholas Christakis of Harvard Medical School was a lead investigator7 in the study. He says there is a direct causal relationship between a person getting fat and being followed in weight gain by a friend.

The study found that the sex of the friends was also an influence. In same-sex friendships, a person had a seventy-one percent increased risk of becoming obese. Men had a forty-four percent increased risk of becoming obese after weight gain in a brother. In sisters, it was sixty-seven percent.

The researchers also considered the effect of where people lived in relation to each other. James Fowler of the University of California, San Diego, was the other lead investigator. He says a friend who lives a few hundred kilometers away has as much influence as one in the same neighborhood. He says the study demonstrates the need to consider that a major part of people's health is tied to their social connections.

Both investigators8 say their research shows that obesity is not just a private medical issue, but a public health problem.

And that's the VOA Special English Health Report. For more health news, go to voaspecialenglish.com. I'm Steve Ember.


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1 obesity Dv1ya     
n.肥胖,肥大
参考例句:
  • One effect of overeating may be obesity.吃得过多能导致肥胖。
  • Sugar and fat can more easily lead to obesity than some other foods.糖和脂肪比其他食物更容易导致肥胖。
2 influential l7oxK     
adj.有影响的,有权势的
参考例句:
  • He always tries to get in with the most influential people.他总是试图巴结最有影响的人物。
  • He is a very influential man in the government.他在政府中是个很有影响的人物。
3 dealing NvjzWP     
n.经商方法,待人态度
参考例句:
  • This store has an excellent reputation for fair dealing.该商店因买卖公道而享有极高的声誉。
  • His fair dealing earned our confidence.他的诚实的行为获得我们的信任。
4 detailed xuNzms     
adj.详细的,详尽的,极注意细节的,完全的
参考例句:
  • He had made a detailed study of the terrain.他对地形作了缜密的研究。
  • A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
5 severely SiCzmk     
adv.严格地;严厉地;非常恶劣地
参考例句:
  • He was severely criticized and removed from his post.他受到了严厉的批评并且被撤了职。
  • He is severely put down for his careless work.他因工作上的粗心大意而受到了严厉的批评。
6 obese uvIya     
adj.过度肥胖的,肥大的
参考例句:
  • The old man is really obese,it can't be healthy.那位老人确实过于肥胖了,不能算是健康。
  • Being obese and lazy is dangerous to health.又胖又懒危害健康。
7 investigator zRQzo     
n.研究者,调查者,审查者
参考例句:
  • He was a special investigator for the FBI.他是联邦调查局的特别调查员。
  • The investigator was able to deduce the crime and find the criminal.调查者能够推出犯罪过程并锁定罪犯。
8 investigators e970f9140785518a87fc81641b7c89f7     
n.调查者,审查者( investigator的名词复数 )
参考例句:
  • This memo could be the smoking gun that investigators have been looking for. 这份备忘录可能是调查人员一直在寻找的证据。
  • The team consisted of six investigators and two secretaries. 这个团队由六个调查人员和两个秘书组成。 来自《简明英汉词典》

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