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
36
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 is the main idea of this passage?
选项
A、People should be thin in order to live longer.
B、Keeping calorie restriction effectively makes one live longer.
C、Eating too much is really harmful to our health.
D、People should form a good diet habit in daily life.
答案
B
解析
主旨大意题。纵观全文可知,有效地控制人体热量的摄入可以延长人的寿命。故B)“有效地控制热量可以使人更长寿”符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3387878.html
相关试题推荐
ColeCountycharged$30anightforanyonewhovolunteeredtogobehindbar
ColeCountycharged$30anightforanyonewhovolunteeredtogobehindbar
ColeCountycharged$30anightforanyonewhovolunteeredtogobehindbar
ColeCountycharged$30anightforanyonewhovolunteeredtogobehindbar
ColeCountycharged$30anightforanyonewhovolunteeredtogobehindbar
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Ifyousitalldayatanofficeandworryaboutitseffectonyourweightand
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
Asavolunteer,JohnApollosislosingweight—theold-fashionedway—byeating
随机试题
Howlonghasthewomanbeenworkinginthelab?[originaltext]M:Howlonghaveyo
It’smyturnon______tonight,butIdon’tfeelatallwell.A、workB、taskC、duty
AsIwasjustgettingfamiliarwiththisjob,Ihad______toaskmyboss.A、many
关于混合所有制结构与混合所有制企业关系的表述,正确的是:A.相互依存 B.前者
软件维护工具不包括()工具。A.版本控制 B.配置管理 C.文档分析 D.
前置胎盘腹部检查时所见的特征是:()A.宫体硬如板状 B.胎位不易
在放射性异常隧道施工环境中,放射性元素主要通过外照射和内照射对人体产生伤害,其中
上市公司进行资产重组后的整合,主要包括的内容有()。 Ⅰ.企业组织的重构
李梅同学考上的大学每年的学费是10000元,专业学制是四年,根据新国家助学贷款
某女,37岁。精神抑郁,胸部闷塞,胁肋胀满,咽中如有物梗塞,咽之不下,咯之不出。
最新回复
(
0
)