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
2
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] From Dr. Marc Hellerstein’s words, we can infer that_______.
选项
A、people who are thin can survive longer than those who aren’t
B、effective calorie restriction makes us healthier and live longer
C、keeping diet cannot help people keep fit or live longer
D、a state of hunger is beneficial for our health
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3399847.html
相关试题推荐
[originaltext](22)Eatingwithaforkinsteadofaspooncanhelpyoulose
[originaltext]Whenitcomestodieting,losingweightfastholdssomeappea
[originaltext]Whenitcomestodieting,losingweightfastholdssomeappea
[originaltext]M:Youknow,we’reclosingtotheendofourlastyearofschool
[originaltext]M:Youknow,we’reclosingtotheendofourlastyearofschool
[originaltext]M:Youknow,we’reclosingtotheendofourlastyearofschool
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
DevelopHealthyEatingHabitsinYourChildrenA)Whatdoyouthinkyour
随机试题
A)Reduce,reuse,andrecycle.RecyclinghasbecomeapartofAmericanlife.Ita
下列属于货币危机产生的原因是()A.心理预期带来的投机冲击 B.金融机构危
在SET协议中,默认使用( )对称加密算法。A.IDEA B.RC5
急性阑尾炎最严重的并发症是A.门静脉炎 B.阑尾化脓穿孔腹膜炎 C.阑尾周围
A.阳和汤 B.桃红四物汤 C.四妙勇安汤 D.八珍汤合左归丸 E.十全
为预防蛛网膜下腔出血的患者发生再出血,患者必须绝对卧床休息A.1周 B.2周
下列建筑中,可不计入建筑层数的是()。A.室内顶板面高出室外设计地面的高度为1
A.绝经期综合征 B.痛经 C.回奶 D.再生障碍性贫血 E.子宫内膜腺
乳牙龋病充填治疗中不能用的垫底材料是A.聚羧酸锌粘固粉 B.磷酸锌水门汀 C
防空地下室战时的电力负荷分级中,()是一级负荷。A、中断供电将危及人员的
最新回复
(
0
)