首页
登录
职称英语
For most people, fat is a burden. It doesn’t really matter where it appear
For most people, fat is a burden. It doesn’t really matter where it appear
游客
2023-09-07
11
管理
问题
For most people, fat is a burden. It doesn’t really matter where it appears, we just don’t want it. But it turns out that our bodies also make a unique form of fat tissue that behaves remarkably unlike any other: rather than storing excess energy, this fat actually burns through it. It’s called brown fat and health experts confirm for the first time that healthy adults have stores of this tissue, which researchers hope to study further as a potential new weight-loss treatment.
Human newborns have been known to have any significant deposits of brown fat, so called because of its abnormally high concentration of dark---colored mitochondria (线粒体), the engines that sustain cell activity. The primary purpose of brown fat is to regulate body temperature: the mitochondria-packed cells are designed to burn high quantities of sugar, and release that energy as heat a mechanism that newborns rely on to keep themselves toasty.
As people age, however, the body becomes better at regulating temperature, so brown-fat stores shrink and white fat starts to emerge. A research team in Sweden has found that healthy adults retain a sizable amount of fat in the front and back of the neck expressing the same proteins as brown fat.
Identifying the presence of brown fat is one thing, but activating it to burn more sugar is another. Two studies confirmed that brown-fat cells become more active in the cold. But before we consider joining the Polar Bear Club, can brown fat actually cause weight loss? Brown fat may indeed allow a person to burn more calories (卡路里) with the same amount of consumption. On the basis of animal models, researchers calculate that 50g of brown fat could burn about 20% daily calorie an average person takes in. Leaner people tended to have more brown-fat deposits than overweight individuals. Interestingly, women were ’twice as likely as men to have active brown fat.
Still, the findings don’t necessarily mean that activating brown fat leads to a slimmer waist. For one thing, the body is especially good at maintaining balance, which is why a boost in calorie-burning can often make it hunger signal and prompt people to eat more to make up for the loss. And even if drug companies could find a way to activate (刺激) brown fat safely, that excess activity could throw off other metabolic (新陈代谢的) systems and damage your health. [br] Which of the following statements is TRUE according to Para. 1?
选项
A、All the people don’t like fat at all.
B、All fat is a kind of tissue storing excess energy.
C、Brown fat has a unique function that any other fat issue doesn’t have.
D、Brown fat can provide a new way to lose weight.
答案
C
解析
推理判断题。由第一段可知,专家们首次确认成年人身上有一种棕色脂肪有着燃烧脂肪的作用,这与其他脂肪的功能是不一样的,所以C)符合文意。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2994239.html
相关试题推荐
Fewpeople______(不抱怨工作单调乏味),buttheywillfeelmoreborediftheydonotwork
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeople
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeople
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeople
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeople
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeople
[originaltext]Somepeoplehaveverygoodmemories,andcaneasilylearnqu
[originaltext]Somepeoplehaveverygoodmemories,andcaneasilylearnqu
Today,moreandmorepeopleareusingcreditcardsinsteadofmoneytobuy
Today,moreandmorepeopleareusingcreditcardsinsteadofmoneytobuy
随机试题
[originaltext]Enjoyinganicedcoffee?Betterskipdinnerorhitthegymaf
TheCurieshadhopedthattheNobelPrizewouldfinallybringtheopportuni
[originaltext]W:It’sgoodtoseeyouagain.Whatareyoudoingthesedays?You’r
如图所示四种钢架中,哪一种横梁跨中a点弯矩最大?( )
治疗痰湿蕴肺型咳嗽的代表方剂是A.二陈汤合三子养亲汤 B.清金化痰汤 C
反映证券组合期望收益水平和多个因素风险水平之间均衡关系的模型是()。A:多因素模
市场风险主要包括利率风险、汇率风险、股票价格风险和商品价格风险。()
符合绿色环保要求,灭火剂是以固态常温常压储存,属于无管网灭火系统,安装相对灵活且
(2017年)基坑排水技术中,初期排水应考虑的因素有( )A.施工弃水量 B.
关于不同方法的避孕原理,错误的是( )。A.安全期避孕是通过将性生活避开排卵前
最新回复
(
0
)