首页
登录
职称英语
As a volunteer, John Apollos is losing weight—the old-fashioned way—by ea
As a volunteer, John Apollos is losing weight—the old-fashioned way—by ea
游客
2024-01-23
6
管理
问题
As a volunteer, John Apollos is losing weight—the old-fashioned way—by eating less. Apollos has lowered his daily caloric intake 25% over the past eight months. The fat, not surprisingly, has melted away. But that’s not the real reason Apollos and the other participants in the program are eating only three-quarters of what they used to. The researchers are trying to determine whether restricting food intake can slow the ageing process and extend our life span. "I feel better and lighter and healthier," says Apollos. "But if it could help you live longer, that would be pretty amazing."
The idea is counterintuitive! If we eat to live, how can starving ourselves add years to our lives? Yet decades of calorie-restriction studies involving organisms ranging from microscopic yeast to rats have shown just that. Last July a long-term study led by researchers at the University of Wisconsin, found that calorie restriction seemed to extend the lives of humanlike rhesus monkeys (恒河猴) as well. The hungry primates fell victim to diabetes, heart and brain disease and cancer much less frequently than their well-fed counterparts did.
Scientists have suspected that calorie restriction could extend the life span of animals since at least 1935, when researchers at Cornell University noticed that severely food-restricted lab rats lived twice as long as normal ones and were healthier. Other investigators began exploring the idea and learned that the secret is not merely a matter of body weight.
One theory is that a state of slight hunger acts as a mild but constant stressor that makes an organism stronger and more resistant to the ills of ageing. Taking in fewer calories also slows metabolism (新陈代谢), and some data indicate that humans with a slower metabolism live longer. But even if these theories are correct, simply defining the mechanism is not the same as identifying the molecular pathways behind it. If researchers could determine those pathways, they might be able to pharmacologically mimic (模仿) the effect of calorie restriction. That could be the ultimate benefit of the CALORIE study. "Calorie restriction is pretty much the only thing out there that we know will not just prevent disease but also extend maximal life span," says Dr. Marc Hellerstein, a nutritionist at the University of California. [br] What’s the meaning of "counterintuitive" (Line 1, Para. 2)?
选项
A、Unconventional.
B、Incorrect.
C、Comprehensible.
D、Meaningless.
答案
A
解析
语义理解题。由定位句可知,如果我们靠吃饭米维持生命,那么挨饿如何能使我们延年益寿呢?由此可知,节食减肥会延长寿命看似是不合乎常理的。故A)“不合常规的”符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3387875.html
相关试题推荐
ColeCountycharged$30anightforanyonewhovolunteeredtogobehindbar
ColeCountycharged$30anightforanyonewhovolunteeredtogobehindbar
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
随机试题
Questions27-30Foreachquestion,onlyONEofthechoicesiscorrect.Writethe
电力系统暂态分析可能用到的方法有()。A.等面积定则 B.等耗量微增率定则
证券公司解聘合规负责人,应当有正当理由,并自解聘之日起( )个工作日内将解聘的
以下哪项药经过批准可以在大众媒介上进行广告宣传A国家基本药物 B非处方药 C
下列各项不属于房地产市场的基本特征的是()。A.区域性 B.交易复杂性
A.全血细胞减少 B.红细胞及血小板正常 C.红细胞及血红蛋白均减少 D.
下表是2004~2010年我国城乡居民人均收入变化情况,请根据该表数据回答下列问
简述职业生涯管理的概念与分类。
金瓶掣签
女,15岁。双下肢水肿1个月。实验室检查:尿RBC25~30/HP,尿蛋白定量
最新回复
(
0
)