北极环境变化威胁北极熊生存空间

Changing Arctic Conditions Threaten Polar Bears 北极环境变化威胁北极熊生存空间 American researchers spent two summers studying polar bears on the Arctic sea ice. They found that sea ice, where polar bears spend much of their lives, is

Rare but Deadly

Rare but Deadly By Susan Brink /2005, U.S. News World Report . All rights reserved with permission. Distributed by Tribune Media Services International. Simple, cheap blood tests could save thousands

英文书摘精选 婴儿的心率应该为多少呢

Heart Rate: What A Babys Heart Rate Should Be 婴儿的心率应该为多少呢？ Picture new parents cooing at their baby on the couch. The babys quiet and calm, and everyones at rest. So their heart rates are low, maybe 60 or 70 beats a minute for

公众人物毕业演讲第28期:比尔盖茨夫妇于斯坦福大学(9)

I talked to a patient there in her early 30s. 我同一位三十岁出头的年轻女患者谈了谈 She had been a worker at a TB hospital when she came down with a cough. 她之前在一家结核病医院当护工 结果自己也开始咳嗽 She we

SSS 2012-05-17

Turns out youre not just what you eat. Youre when you eat. Because a new study in mice suggests that, in the battle of the bulge, the timing of meals influences the piling on of pounds. In the experiment, researchers gave groups of mice either standa

草莓的作用

Dieting isnt always easy, particularly if you have a sweet tooth. But by adding strawberries to your diet, you can enjoy a range of guilt-free dishes, drinks and snacks any time of day. Best of all, strawberries are low in calories, high in fiber, fa

如何获得6块腹肌

Every man dreads and awaits the albatross of the elusive 6-pack abdomen. Call it the ills of Pornography or heightened ideals of women, but every man is being subjected to the prospect of having the perfect body and a ripping 6-pack is the right way

2006年VOA标准英语-Crime Rate Soars as People Return to New Orlean

By Greg Flakus New Orleans 28 August 2006 Before Hurricane Katrina devastated New Orleans a year ago, the city had one of the highest crime rates in the United States. New Orleans Police Detectives escort suspect Raymond Amison, 18, center, into jai

New Drug Combination Improves Hepatitis C Cure Rate

Researchers are in the final steps of evaluating two new drugs to add to the existing treatment for hepatitis C. An estimated 170 million people worldwide have the liver infection known as hepatitis C. The standard, two-drug treatment is not effectiv

大豆对多囊卵巢综合征健康有什么好处

Many women with polycystic ovary syndrome (PCOS) are confused about whether or not soy is good for them. Some women even fear it. 患有多囊卵巢综合征(PCOS)的许多女性都困惑大豆对她们是否有好处。有些女性甚至对大豆有些

停止锻炼的后果

Ever wonder what would happen if you stopped working out? A new study on identical twins published in th journal Medicine Science in Sports Exercise explores exactly that, and the results are dramatic. 想知道停止锻炼后会发生什么吗？一项

U.S. FDA approves first cord blood product

WASHINGTON, Nov. 11 (Xinhua) -- The U.S. Food and Drug Administration (FDA) on Friday approved HEMACORD, the first licensed hematopoietic progenitor cells-cord cell therapy. HEMACORD is indicated for use in hematopoietic stem cell transplantation pro

Why Don't Snorers Wake Themselves Up?

Why Don't Snorers Wake Themselves Up? Anyone who's ever slept in the same room as a loud snorer knows how infuriating it is to have to suffer through all that noise while the offending party remains blissfully oblivious and asleep. Loud snorers can w

男女对温度的感受不同?

It happens every summer: offices turn on the air-conditioning, and women freeze into popsicles. But until now, there was no data to understand why women felt cold and were slipping on cardigans while men just rolled up their sleeves at the same tempe

限时饮食可以预防甚至逆转肥胖

Scientists, like mothers, have long suspected that midnight snacking is inadvisable. But until a few years ago, there was little in the way of science behind those suspicions. Now, a new study shows that mice prevented from eating at all hours avoide

一天一把坚果能减少腹部脂肪

A handful of nuts a day can keep hunger at bay and beat belly fat, according to scientists. This is the first time a link between eating nuts and higher levels of serotonin - a substance that decreases appetite, boosts happiness and improves heart he

喝啤酒能让人更加聪明吗?

Hop compound boosts brain function - but you'd need to drink 3,500 PINTS a day 啤酒能让你更聪明吗?啤酒花中所含的化学物质能刺激大脑功能-前提是每天喝3500品脱。 Beer, or at least one of its ingredients, could boost br

voa标准英语2008-High Crime Rate Takes a Toll on New Orleans

More than three years after Hurricane Katrina caused massive damage in New Orleans, the city has less than half its pre-hurricane population and a crime rate higher than any other city in the nation. But, as VOA's Greg Flakus reports, citizens' grou

喝水不够对身体造成的不良后果

Besides the fact that you'd literally die without it, there are many, MANY imperative reasons to drink water frequently, every single day. It starts out pretty mild - you might feel thirsty and have a dry mouth. But the long-term effects of not drink

友谊不分物种 狮王与小狗成好兄弟

A disabled lion who was reared by a double amputee zookeeper has formed an unlikely bond with a miniature sausage dog with the pair inseparable ever since the cat was a cub. 一名双腿截肢的动物园管理员抚养了一只残疾的狮子，这只