首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
If you have gone on a diet and reached your goal, chances are good that when you stop dieting you will regain all the weight you
If you have gone on a diet and reached your goal, chances are good that when you stop dieting you will regain all the weight you
admin
2010-04-30
23
问题
If you have gone on a diet and reached your goal, chances are good that when you stop dieting you will regain all the weight you lose. After several weeks on a low-calorie diet—900 calories or fewer— the body conserves energy by showing the speed at which it burns calories. This slow-down explains in part why your weight loss may cease after a few weeks. When you eventually return to eat a normal amount of food, your body may continue to burn calories at the slower rate, storing the remaining calories as fat. So if you are on a strict diet, your body may need fewer calories to maintain the same weight; losing weight becomes more difficult.
Doctors know that as you gain weight the fat cells in your body (most of us average 30 billion of them) become enlarged. But there is a limit to how big a fat cell can get, and very fat people develop additional fat cells—something more than 100 billion. It now appears that you can add fat cells at any point during your life, although the number you have is influenced by a combination of your history of dieting and your genetic makeup.
Fat cells differ distinctly from other cells in that they are made mostly of fat instead of protein and apparently they never go away, even after dieting. Instead, they merely shrink. Dr. Jukes Hirsch of Rckefeller University has examined the body tissue of very fat people who have lost weight, and found that it resembles that of starvation victims. Perhaps, he supposes, it is the billions of undersize, "hungry" cells that drive many formerly fat people off their diets.
New research reveals that your hungry cells aren’t the only signal senders that tempt you toward the refrigerator. Another culprit may be the hormone insulin. Insulin tums sugar and fat into fuel for the body. In addition, some researchers believe that high levels of insulin are a factor in hunger and appetite—and may drive you to overeat.
Exercise helps maintain your weight and seems to bring insulin levels down, says Dr. Donald S. Robertson, a medical director. "Any weight -loss program must fail," he said, "unless it incorporates a certain amount of exercise."
According to the passage, it can be concluded that______.
选项
A、it has something to do with parents whether one is fat or not
B、there are many factors that lead to overweight
C、it is the hormones insulin that makes you fat
D、you gain weight because you stop dieting
答案
B
解析
事实细节题。文章倒数第二段中提到New research reveals that your hungry cells aren’t the Only signal senders that tempt you toward the refrigerator.Another culprit may be the hormone insulin.可知hungry cells和hormone insulin是tempt you toward the refrigerator的原因。由此可知导致肥胖的因素不是一
转载请注明原文地址:https://kaotiyun.com/show/VJOK777K
0
大学英语六级
相关试题推荐
Forthispart,youareallowed30minutestowriteacompositiononthetopicABoominContinuingEducation.Youshouldwritea
A、Makingfriendsinaforeigncountry.B、SpanishandFrench.C、ForeignTV,radioandothermedia.D、Learningaforeignlanguage.
Onecalledherbossa"bitchfromhell"whileanotheradmitted"lyingthroughhisteeth"atinterview.BoththeBritishjob(36)
A、100million.B、70million.C、67million.D、50million.CHowmanyiPodsarebeingsold?
Shortlybeforehediedoflymphoma(淋巴瘤),thegreatwriterandphysicianLewisThomas,whosebooksturnedscienceintoawayofa
Wemodempeopleeatnotonlywhenwearehungrybutalsowhenweareinbadmood.Bothbloodpressureandtheeffectsofstress
A、Shewantsherfriendstoloseweighttoo.B、Shewantsherfriendstodoexerciseswithher.C、Shewantsherfriendstoeatpoo
A、Freshfruit.B、Agiftcertificate.C、Homemadecandy.D、Aweddingpresent.CWhatisthewomansendingtohersister?信息明示题。女士说自
A、In1585.B、In1584.C、In1583.D、In1586.CWhendidShakespeareandhiswifehavetheirfirstchild?综合推断题。根据文中的...attheage
A、Becausetheirspousewouldfeelnopainduringthedeath.B、Becauseadeathwouldnotblowtheirprideandself-confidence.C、
随机试题
Itwasalmostdarkinthestreet______afewspotlights.
现代教育派的主要代表人_______的主要著作是《民本主义与教育》。
《侵权责任法》规定完全民事行为能力人对自己的行为暂时没有意识或失去控制造成他人损害的,应当承担侵权责任。下列不应承担的情形是()。
下列关于规章制定程序的说法不正确的是:()
()是指团队生存、改进和适应变化着的环境的能力。
申请认定教师资格者的普通话水平测试等级标准要在_______以上。
阅读下文字,完成以下问题。莫斯科谢切诺夫医学研究院近日在研究二氧化碳如何参与人和动物生命活动方面取得突破。该医学研究院的专家们在研究中发现,三氧化碳与动物生命活动密切相关,即它能抑制包括人在内的所有动物细胞中活性氧的形成。这是迄今为止二氧化碳一个[
下列选项中不属于网页浏览器的是()。
Therehavebeenseveralnewevents______totheprogramforthe2008BeijingOlympicGames.
I’vealreadytoldyouthatI’mgoingtobuyit,______.
最新回复
(
0
)