2014届最新高考英语一轮单元复习 精品阅读理解提升文章精选一百篇(84)
Unit 84 Liposuction's Limits Doctors have long suspected that excess fat around the belly -- as opposed to the thighs or hips -- increases the chances of developing heart disease, high blood pressure and diabetes. Apparently, belly fat doesn't just lie there and jiggle. It actively promotes ill health by, among other things, pumping out inflammatory proteins and interfering with the body's ability to use insulin. So it seemed plausible to many physicians that surgically removing belly by liposuction could give patients a double benefit: a slimmer figure and a better metabolic profile.
That's why there was such disappointment with the news, reported in the New England Journal of Medicine last week, that unlike losing weight the old-fashioned way -- by eating less and moving more -- liposuction makes no difference in a person's biological risk factors. Researchers in St. Louis, Mo., and Rome, Italy, conducted extensive tests on 15 obese women before and three months after they underwent liposuction. "We removed 20 to 22 pounds of fat from each patient," says Dr. Samuel Kline, director of the Center Human Nutrition at Washington University in St. Louis. That's twice as much fat as is usually removed. The women were instructed not to diet or exercise more until the experiment was over. All reported that they felt better and could move more easily after surgery. But with respect to their metabolic risk factors, Klein says, "The data after the procedure were identical to the data before the procedure." How is that possible? Liposuction does not remove the fat cells found in the liver or the muscles, or the so-called visceral fat that surrounds internal organs. Nor does liposuction reduce the size of any remaining fat cells; large fat cells appear to produce more harmful proteins than do small ones. Some doctors believe the results would have been better if the patients had been only a few pounds overweight. In any case, the best way to shrink fat cells is still to create a negative energy balance by -- you guessed it -- eating fewer calories than you burn. Disappointing as this study might be, there is still hope for folks who struggle with their weight. It is becoming increasingly clear that even modest weight loss -- of as little as 5% -- can lead to real improvements in your health. The more weight you lose -- and keep off -- the better. But you don't have to get all the way back to normal weight. Most of us will never see a model-slim figure in the mirror. But we can all lead healthier lives.
Latrice Brown was excited about starting her junior year.阅读理解答案
You can never imagine how big and complex the inner world 阅读理解答案
这些东西 在这里免费 在另一个国家要收费!
谷歌生日?9件关于Google你不知道的事情
The flying fox is not a fox at all. It is an extra large阅读理解答案
视频:防卫小贴士 如何逃脱捆绑?
最近爆红的《釜山行》,老外是怎么评价的?
为了帮助中学生健康成长,某中学英文报开辟了HEART
早上干这8件事 你的一天都会不一样
I grew up in a small town.My father raised chickens and ran 阅读理解答案
国内英语资讯:Senior CPC official arrives in Budapest for visit
《行尸走肉》第七季将有新的发展方向
表面之下 Under the Surface
These days I realize one thing which amazes me so much阅读理解答案
净化室内空气 选这些植物就对了!
For the last 10 years, job listing site CareerBuilder has put阅读理解答案
BBC榜单:世界最伟大10家博物馆
爸爸的惊喜 Dad’s Surprise
About 1966 or so, a NASA (美国航空航天局) team doing work for the Apollo 阅读理解答案
三位科学家同获诺奖,奖金怎么分
节后想要涨点Money?求加薪的正确姿势
Scientific experiments can sometimes go wrong and when they 阅读理解答案
Language as a System of Symbols阅读理解答案
学会说不 设定界限后你的生活发生这10件大事
Our Fears Can Change the Reality of the Situation阅读理解答案
Childhood obesity 41 (consider) one of the most serious阅读理解答案
国内英语资讯:Chinese FM meets Ecuadorian counterpart on boosting strategic cooperation
《纸牌屋》演员莫莉帕克将扮演莫林罗宾逊
The beginning of a Frank Sinatra song drifted across 阅读理解答案
16岁少年嫌同学上课讲话吵 在饮水机内投毒