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
2024-01-27
18
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] The purpose of keeping diet for John Apollos and other participants is to_______.
选项
A、lose weight in order to keep slim
B、prove how long people can survive if they lack food
C、prove if eating less food can extend life span and keep young
D、just keep a good mood and live a healthier life
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3399844.html
相关试题推荐
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
Lookingforanewweightlossplan?Trylivingontopofamountain.Mountai
Lookingforanewweightlossplan?Trylivingontopofamountain.Mountai
[originaltext]Whenitcomestodieting,losingweightfastholdssomeappea
随机试题
[audioFiles]audio_eusm_j01_232(20099)[/audioFiles]A、Movesomeboxes.B、Readhis
审计机关开展审计质量检查的内容有()。A.审计成本节约情况 B.建立和执行审计
母乳喂养时,为避免母亲乳头皲裂最主要的措施是A.减少哺乳时间 B.每次哺乳后应
2016年10月,吴先生年满60岁,从某国企退休。吴先生拥有35年的工龄,退休前
证券公司的()应当在任职前取得经国务院证券监督管理机构核准的任职资格。 Ⅰ.
石菖蒲挥发油中α-细辛醚、β-细辛醚、欧细辛醚三者的分离最好采用A.纸层析 B
A.红色 B.黄色 C.绿色 D.草黄色 E.白色尿毒症引起的心包积液呈
当看跌期权的价格高于当时的标的物价格时,该期权为实值期权。
工程建设标准批准部门应当对工程项目执行强制性标准情况进行监督检查,监督检查可以采
患者,男性,40岁,因2个月来发热、咳嗽、气短入院。已用青霉素,环丙沙星等治疗2
最新回复
(
0
)