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听美文故事记6级单词07-08

时间:2010-12-03 01:35来源:互联网 提供网友:jb0047   字体: [ ]
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8.Stay Thin by Sleeping More?

A study published Monday found that people who sleep less tend to be fat, and experts said it's time find if more sleep will fight obesity1.

"We've put so much emphasis on diet and exercise that we've failed to recognize the value of good sleep," said Fred Turek, a physician at Northwestern University.

Monday's study from Eastern Virginia Medical School in Norfolk covered 1,000 people and found that total sleep time decreased as body mass index -- a measure of weight based on height -- increased.

Men slept an average of 27 minutes less than women and overweight and obese2 patients slept less than patients with normal weights, it said. In general ,the fatter subjects slept about 1.8 hours a week less than those with normal weights.

"Americans experience insufficient3 sleep and bodies. Clinicians are aware of the burden of obesity on patients," the study said.

"Our findings suggest that major extensions of sleep time may not be necessary, as an extra 20 minutes of sleep per night seems to be associated with a lower body mass index," it added.

"We caution that this study does not establish a cause-and-effect relationship between restricted sleep and obesity (but) investigations4 demonstrating success in weight loss via extensions of sleep would help greatly to establish such a relationship."

The study was published in the Archives of Internal Medicine along with an editorial by Turek and Northwestern colleague Joseph Bass5 commenting on it and related research.

In an interview with Reuters, Turek said some studies have shown sleep deprivation6 causes declines in an appetite suppressing protein hormone7 called leptin, and increases in another hormone that causes a craving8 for food. In addition neuropeptides in the brain governing sleep and obesity appear to overlap9, he said.

Obesity has been rising dramatically in developed countries and reached epidemic10 levels in the United States, it added, leading to a variety of health problems.


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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 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。
3 insufficient L5vxu     
adj.(for,of)不足的,不够的
参考例句:
  • There was insufficient evidence to convict him.没有足够证据给他定罪。
  • In their day scientific knowledge was insufficient to settle the matter.在他们的时代,科学知识还不能足以解决这些问题。
4 investigations 02de25420938593f7db7bd4052010b32     
(正式的)调查( investigation的名词复数 ); 侦查; 科学研究; 学术研究
参考例句:
  • His investigations were intensive and thorough but revealed nothing. 他进行了深入彻底的调查,但没有发现什么。
  • He often sent them out to make investigations. 他常常派他们出去作调查。
5 bass APUyY     
n.男低音(歌手);低音乐器;低音大提琴
参考例句:
  • He answered my question in a surprisingly deep bass.他用一种低得出奇的声音回答我的问题。
  • The bass was to give a concert in the park.那位男低音歌唱家将在公园中举行音乐会。
6 deprivation e9Uy7     
n.匮乏;丧失;夺去,贫困
参考例句:
  • Many studies make it clear that sleep deprivation is dangerous.多实验都证实了睡眠被剥夺是危险的。
  • Missing the holiday was a great deprivation.错过假日是极大的损失。
7 hormone uyky3     
n.荷尔蒙,激素,内分泌
参考例句:
  • Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
  • This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
8 craving zvlz3e     
n.渴望,热望
参考例句:
  • a craving for chocolate 非常想吃巧克力
  • She skipped normal meals to satisfy her craving for chocolate and crisps. 她不吃正餐,以便满足自己吃巧克力和炸薯片的渴望。
9 overlap tKixw     
v.重叠,与…交叠;n.重叠
参考例句:
  • The overlap between the jacket and the trousers is not good.夹克和裤子重叠的部分不好看。
  • Tiles overlap each other.屋瓦相互叠盖。
10 epidemic 5iTzz     
n.流行病;盛行;adj.流行性的,流传极广的
参考例句:
  • That kind of epidemic disease has long been stamped out.那种传染病早已绝迹。
  • The authorities tried to localise the epidemic.当局试图把流行病限制在局部范围。
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TAG标签:   听美文故事  记6级单词
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