首页
登录
职称英语
As a volunteer, John Apollos is losing weight—the old-fashioned way—by eatin
As a volunteer, John Apollos is losing weight—the old-fashioned way—by eatin
游客
2024-02-14
4
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 aging 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 aging. 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 does the research on rhesus monkeys imply?
选项
A、The less people eat, the longer they will live.
B、Calorie restriction can help people suffer fewer diseases.
C、People who often feel hungry can live longer.
D、Humans depend on calorie to support lives.
答案
B
解析
细节辨认题。由定位句可知,研究人员发现,通过控制热量摄人,类人恒河猴的寿命似乎也得以延长。比起饱食终日的同类,那些吃不饱的恒河猴患糖尿病、心脏病、脑部疾病及癌症的几率大大地降低了。故选B)“控制热量摄入有助于帮人们减少疾病的困扰”。
转载请注明原文地址:https://tihaiku.com/zcyy/3451314.html
相关试题推荐
Justasyoucanbeslimandinactive,it’spossibletobeoverweightandact
Justasyoucanbeslimandinactive,it’spossibletobeoverweightandact
Justasyoucanbeslimandinactive,it’spossibletobeoverweightandact
Justasyoucanbeslimandinactive,it’spossibletobeoverweightandact
Justasyoucanbeslimandinactive,it’spossibletobeoverweightandact
Andtheirword__________(有份量).carriesweight
Asthepaceoflifecontinuestoincrease,wearefastlosingtheartofrel
Asthepaceoflifecontinuestoincrease,wearefastlosingtheartofrel
Asthepaceoflifecontinuestoincrease,wearefastlosingtheartofrel
Asthepaceoflifecontinuestoincrease,wearefastlosingtheartofrel
随机试题
饮食习惯dietaryhabit
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
Beijing’slocaleducationauthoritycompiledalistof"potentialsecurityp
【教学过程】 (一)情境导入 谈话导入,谈谈喜欢的梁山好汉108将。 (二)整体感知 1.学生介绍《水浒传》作者和作品及和林冲有关的其它小说情节
道氏理论所认为的主要趋势的持续时间一般在()。A.1年或1年以上 B.
发现电力电缆有下列情况之一,应立即汇报值班调控人员申请将电力电缆停运,停运前应远
简论《中华苏维埃共和国宪法大纲》的主要内容和意义。
李鸿章古今国势,必先富而后自强,尤先富在民生而国本乃可益固。”李鸿章的这种想法在
安全生产规章制度是生产经营单位有效防范安全风险、保障从业人员安全健康和企业财产安
仲裁协议应当具备的内容是()。A.仲裁事项、仲裁员、选定的仲裁委员会 B
最新回复
(
0
)