首页
登录
职称英语
If you have gone on a diet and reached your goal, chances are good that when
If you have gone on a diet and reached your goal, chances are good that when
游客
2023-09-13
25
管理
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." [br] When you stop dieting you will regain the weight you lost because ______.
选项
A、the fat cells in your body have become enlarged
B、your appetite had become greater than before
C、your body can now consume only part of the calories you get from food
D、you have developed additional fat cells
答案
C
解析
事实细节题。根据文章首段倒数第二句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.停止减肥就会恢复体重,是因为现在的身体只能消耗所摄入热量的一部分,其余热量就以脂肪的形式储存在体内。由此可知,C“你的机体只消耗你从食物中摄取热量的一部分”为最佳选项
转载请注明原文地址:https://tihaiku.com/zcyy/3010716.html
相关试题推荐
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
Ifyouhavegoneonadietandreachedyourgoal,chancesaregoodthatwhen
Ifyouhavegoneonadietandreachedyourgoal,chancesaregoodthatwhen
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
[originaltext]It’sgenerallyagreedthatserious,violentcrimehasreached
[originaltext]It’sgenerallyagreedthatserious,violentcrimehasreached
[originaltext]It’sgenerallyagreedthatserious,violentcrimehasreached
随机试题
()联合会议()紧急会议[br]()会议议程(
[originaltext]W:ThismorningIcameacrossPaul.Helookedmuchmorehandsomet
锅炉房的门均应直通室外或直通安全出口,外墙开口部位的上方可设置宽度不小于(
地籍测量的内容包括( )。A.地籍控制测量 B.地籍要素测量 C.地籍平面
关于尿瘘的临床表现,叙述错误的是A.出现的时间多在产后或术后立即开始 B.尿道
A.胎盘残留 B.胎盘粘连 C.胎盘部分植入 D.宫缩乏力 E.软产道损
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
能够从上述资料中推出的是:A.2020年下半年全国集成电路出口数量同比增长超
某公司所有的销售人员都是男性,所有的文秘都是女性,所有的已婚者都是文秘,公司的总
注册会计师负责审计甲公司2020年度财务报表,了解到被审计单位采购与付款业务循环
最新回复
(
0
)