首页
登录
职称英语
Once upon a time, you believed in the tooth fairy. You counted on the stabil
Once upon a time, you believed in the tooth fairy. You counted on the stabil
游客
2023-11-17
53
管理
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 multi is a waste of money for most people — and there’s growing evidence that some other old standbys may even hurt your health. Here’s what you need to know.
Myth: A multivitamin can make up for a bad diet
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, at least when it comes to the big diseases — cancer, heart disease, stroke. "Even women with poor diets weren’t helped by taking a multivitamin," says study author Marian Neuhouser, PhD, in the cancer prevention program at the Fred Hutchinson Cancer Research Center, in Seattle.
Vitamin supplements came into vogue in the early 1900s, when it was difficult or impossible 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 and mental confusion of pellagra (caused by a lack of the B vitamin niacin). But these days, you’re extremely unlikely to be seriously deficient if you eat an average American diet.
Myth: Vitamin C is a cold fighter
In the 1970s, Nobel laureate Linus Pauling popularized the idea that vitamin C could prevent colds. Today, drugstores are full of vitamin C-based remedies. Studies say: Buyer, beware. In 2007, 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.
Of course, prevention isn’t the only game in town. 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.
Myth: Hey, it can’t hurt
The old thinking went something like this — sure, vitamin pills might not help you, but they can’t hurt either. The shift started with a big study of beta-carotene pills. It was meant to test whether the antioxidant could prevent lung cancer, but researchers instead detected surprising increases in lung cancer and deaths among male smokers who took the supplement. No one knew what to make of the result at first, but further studies have shown it wasn’t a
fluke
— there’s a real possibility that in some circumstances, antioxidant pills could actually promote cancer.
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. [br] In Paragraph 6, "fluke" means______.
选项
A、supplement
B、something by chance
C、failure
D、cure
答案
B
解析
词汇题。
转载请注明原文地址:http://tihaiku.com/zcyy/3194826.html
相关试题推荐
Itisgenerallybelievedthatthegreatestdamageofoldageisthelossof
Itisgenerallybelievedthatthegreatestdamageofoldageisthelossof
Itisgenerallybelievedthatthegreatestdamageofoldageisthelossof
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
随机试题
Exceptionalchildrenaredifferentinsomesignificantwayfromothersofth
[originaltext]Shouldapersonownacar?Thisisanimportantquestion.In
HowtobeagreattesttakerSometimesitseems
A.可去间断点 B.跳跃间断点 C.第二类间断点 D.连续点
刘某、王某、张某、李某为期货公司从业人员,因执行过程中存在违法违规行为,中国期货
对黏液性水肿有治疗效果的药物是A:丙硫氧嘧啶 B:复方碘溶液 C:卡比马唑
某民营化工企业主要产品为日光油漆。其生产车间和库房中的主要原料和辅料有甲苯、二甲
某建筑施工场界噪声昼间、夜间等效声级分别为65dB(A)、55dB(A),昼夜、
广泛应用于有机溶剂蒸气和碳氢化合物的净化处理,也可用于除臭的净化方法为()
适用制作低、中、高压洁净空调系统及潮湿环境,但对酸碱性环境和防排烟系统不适用的非
最新回复
(
0
)