首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Once upon a time, you believed in the tooth fairy. You counted on the stability of housing prices and depended on bankers to be,
Once upon a time, you believed in the tooth fairy. You counted on the stability of housing prices and depended on bankers to be,
admin
2012-10-20
55
问题
Once upon a time, you believed in the tooth fairy. You counted on the stability of housing prices and depended on bankers to be, well, dependable. And you figured that taking vitamins was good for you. Oh, it’s painful when another myth gets shattered. Recent research suggests that a daily multivitamin is a waste of money for most people—and there’s growing evidence that some other old standbys may even hurt your health.
Last year, researchers published new findings from the Women’s Health Initiative, a long-term study of more than 160,000 midlife women. The data showed that multivitamin-takers are no healthier than those who don’t pop the pills.
Vitamin supplements came into vogue in the early 1900s, when it was difficult for most people to get a wide variety of fresh fruits and vegetables year-round. Back then, vitamin-deficiency diseases weren’t unheard-of: the bowed legs and deformed ribs of rickets (caused by a severe shortage of vitamin D) or the skin problems. But these days, you’re extremely unlikely to be seriously deficient if you eat an average American diet. Most of us could do with a couple more daily servings of produce, but a multi doesn’t do a good job at substituting for those. Experts say multivitamins have maybe two dozen ingredients--but plants have hundreds of other useful compounds. If you just take a multivitamin, you’re missing lots of compounds that may be providing benefits.
Another myth about vitamin is that vitamin C could prevent colds. Today, drugstores are full of vitamin C-based remedies. Studies say: Buyer, beware. Recently, researchers analyzed a raft of studies going back several decades and involving more than 11,000 subjects to arrive at a disappointing conclusion: Vitamin C didn’t ward off colds, except among marathoners, skiers, and soldiers on subarctic exercises.
Then can the vitamin cut the length of colds? Yes and no. Taking the vitamin daily does seem to reduce the time you’ll spend sniffling--but not enough to notice. Adults typically have cold symptoms for 12 days a year; a daily pill could cut that to 11 days. Kids might go from 28 days of runny noses to 24 per year. The researchers conclude that minor reductions like these don’t justify the expense and bother of year-round pill-popping (taking C only after symptoms crop up doesn’t help).
Some people would think that vitamin pills might not help you, but they can’t hurt either. However, a series of large-scale studies has turned this thinking on its head. Studies have raised concerns that taking high doses of folic acid could raise the risk of colon cancer. Still others suggest a connection between high doses of some vitamins and heart disease.
Some expert says vitamins are safe when you get them in food, but in pill form, they can act more like a drug—with the potential for unexpected and sometimes dangerous effects.
From the passage, we learn that the author
选项
A、feels it necessary to take vitamin pills.
B、thinks pill-takers are healthier than those who don’t.
C、suggests high doses of vitamins may result in heart disease.
D、finds out an unsatisfied conclusion about taking multivitamins.
答案
D
解析
细节判断题。从全文的描述来看,作者试图告诉我们,吃维生素片不是通常人们所想象的那样对身体有益,而会造成不良后果。因此选项D符合题意。文章第2段末句提到,吃维生素片的人并没有比不吃维生素片的人健康。因此B错误。第6段末句提到,大剂量吃某种维生素可能引发心脏病,选项C误读了该句。
转载请注明原文地址:https://kaotiyun.com/show/FGhK777K
0
专业英语四级
相关试题推荐
Whydoestheprofessormention$20bill?
Accordingtothispassage,theRomansoldiersmainlydependedupon______tosendtheirmessages.
Threatsfromnomadicpeopleinthenorthwere【C1】______throughoutChinesehistory.TheywerecontinuallyattackingtheChine
Threatsfromnomadicpeopleinthenorthwere【C1】______throughoutChinesehistory.TheywerecontinuallyattackingtheChine
ManydeathsduringchildbirthcouldbepreventedbythefollowingmethodsEXCEPT
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
Researchershavefoundexperimentalevidencethatatouchcanbeworthathousandwords.MatthewJ.Hertenstein,aprofessorof
As______announcedintoday’spaper,theShanghaiExportCommoditiesFairisalsoopenonSundays.
Parentsareoftenupsetwhentheirchildrenpraisethehomesoftheirfriendsandregarditasaslur(诋毁)ontheirowncooking
随机试题
教育研究的对象是_______。
不属于高能磷酸化合物的是
患者,男性,69岁。高血压病史6年,糖尿病病史2年,血压曾达170/105mmHg,有吸烟、饮酒嗜好。根据以上情况,该患者的预后判断是
人民法院于2014年8月10日受理某企业破产案件。在进行破产清算时,下列选项中,管理人可请求人民法院行使撤销权的有:()
在高层建筑中有一不具备自然排烟条件的中庭,其体积为30000m3,则设计的机械排烟量应为()m3/h。
在我国,课程具体表现为课程计划、学科课程标准和()。
对等计算(PeertoPeercomputing,P2P),是指信息或服务的提供者和使用者通过直接交换实现资源共享,形成非中心化的、自组织的,且所有或大部分联系是对称的分布式环境。根据上述定义,下列选项属于基于P2P的网络应用的是:
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
Ourtheoriesabouthumandiseasearetheproductofcurrentfashion【M1】______thanwewouldliketoadmit.Butjustast
What’stheauthor’sattitudetowardthefutureoftheeuroinEurope?Criticsofeuroholdthat______.
最新回复
(
0
)