首页
登录
职称英语
As a volunteer, John Apollos is losing weight—the old-fashioned way—by eating
As a volunteer, John Apollos is losing weight—the old-fashioned way—by eating
游客
2024-01-26
58
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
转载请注明原文地址:https://tihaiku.com/zcyy/3395642.html
相关试题推荐
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthemtod
Itoftenseemsthatsomepossesssuperhumaneatingpowers,allowingthemtod
Thequalityofpatiencegoesalongwaytowardyourgoalofcreatingamore
Thequalityofpatiencegoesalongwaytowardyourgoalofcreatingamore
Thequalityofpatiencegoesalongwaytowardyourgoalofcreatingamore
随机试题
______shedislikedtheideaofmarriage,sheknewthatpoliticalreasonsmight
TheAlzheimer’sAssociationandtheNationalAllianceforCaregivingest
TroubleinParadiseValleyAOnonesideoftheargument
ThomasWheeler,【D1】______oftheMassachusettsMutualLife【D2】______Company,
AskmostpeoplehowtheydefinetheAmericanDreamandchancesarethey’lls
什么叫大学?什么是大学的精神?许多身在其中的学子并不全懂。他们在大学校园中懵懵懂
头痛辨证的关键是 A.辨头痛之部位,分表里B.辨头痛之轾重,分脏腑 C.辨
根据《行政处罚法》规定,地方规章可设定的行政处罚是()。A.没收违法所得 B
(2017年真题)某类劳动力的工资率为每小时10元时,某城市对这类劳动力的需求总
大体积混凝土入模温度不宜超过()℃。A.15 B.20 C.25 D
最新回复
(
0
)