想苗条最好多多睡觉

 A study 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 North-western University.

　　本周一来自诺福克的西弗吉尼亚医学院的一份对1000人做的研究表明，累计睡眠时间和体重指数刚好成反比，体重指数是一种以身高为基准来衡量体重的方法。

　　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 weight.

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

　　“我们的研究结果表明大量地增加睡眠时间是没有必要的，每晚多睡20分钟对降低体重指数似乎有一定的帮助。”该研究补充道。

　　“我们警告说，该研究并没有表明睡眠时间长短与肥胖之间有什么必然的因果关系。不过，调查显示延长睡眠时间确实可以有效减轻体重，这对于证明这一关系非常有帮助。”

　　The study was published in the Archives of Internal Medicine along with an editorial by Turek and Northwestern colleague Joseph Bass⁴ commenting on it and related research.

　　In an interview with Reuters, Turek said some studies have shown sleep deprivation⁵ causes declines in an appetite suppressing protein hormone⁶ called leptin, and increases in another hormone that causes a craving⁷ for food. In addition neuropeptides in the brain governing sleep and obesity appear to overlap⁸, he said.

　　该研究还提到，近年来发达国家肥胖症状以惊人的速度增长，在美国肥胖已成为一种普遍现象，并且引发了多种健康问题。 

1 obesity   

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   

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   

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 bass   

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。

5 deprivation   

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。

6 hormone   

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。

7 craving   

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。

8 overlap   

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。