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
Which Vitamin Boosts Brain Power? Vitamin E has been touted for its anti-aging and anti-cancer benefits because, as an anti
Which Vitamin Boosts Brain Power? Vitamin E has been touted for its anti-aging and anti-cancer benefits because, as an anti
admin
2014-05-14
28
问题
Which Vitamin Boosts Brain Power?
Vitamin E has been touted for its anti-aging and anti-cancer benefits because, as an antioxidant, it counters the destructive action of molecules called free radicals. Now a study has shown vitamin E may also help the memory loss and impaired thinking that occurs in the elderly.
Researchers at the Rush Institute for Healthy Aging in Chicago conducted a three-year study involving nearly 3,000 people older than 65 to investigate the cognitive effects of vitamin E in food and supplements.
By comparing the average scores of four different tests of memory and perception, the researchers were able to track change in cognitive function with age. The participants also completed dietary questionnaires periodically, which enabled the researchers to determine their vitamin E intake.
The study found that the higher the intake of total vitamin E, the less change there was in the people’s average test scores each year. And those men and women who consumed the most vitamin E had a 36 percent lower rate of decline in their average test scores than those who consumed the least vitamin E. Other antioxidants, such as vitamin A, carotene and vitamin C, had little effect on the results.
Those who took supplements but got little vitamin E from food appeared to have the same protective benefit from the vitamin as those who consumed high amounts of E in their diets, says Martha Clare Morris, an assistant professor at Rush-Presbyterian-St. Luke’s Medical Center. Several clinical trials are underway to compare protection from cognitive decline in people taking a supplement or a placebo, she says. In this study, the majority who took a supplement reported taking 400 IU a day.
Which of the following statements is true, according to the author of this passage?
选项
A、Older peopie can also benefit from vitamin E in non-staples.
B、The regular vitamin E intake is effective to all the elderly people.
C、All the elderly people can only benefit from vitamin E in food.
D、Only some elderly people will benefit from vitamin E in food.
答案
A
解析
根据提问,需要找到各个选项相关的信息。第二段里有to investigate the cognitive effects of vitamin E in food and supplements,说明调查研究的对象有食品和补充食物。最后一段Those who took supplements but got little vitamin E from food appeared to have the same proteeuve benefit from the vitamin as those who
转载请注明原文地址:https://kaotiyun.com/show/tOUK777K
0
专业英语四级
相关试题推荐
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudent.(1)_____alongreadingassignmentisgiven,i
Whatarethesecretsofsuccessofschoolsreform?(1)_____thereisnoonetemplate(模版),fourimportantthemes(2)______:handing
Whatarethesecretsofsuccessofschoolsreform?(1)_____thereisnoonetemplate(模版),fourimportantthemes(2)______:handing
Whohasn’twantedtomasternotjusttwolanguagesbut10?TakeGiuseppeMezzofanti,a19th-centurypriestwhowassaidtobe(1)
Giventhechoicebetweenspendinganeveningwithfriendsandtakingextratimeforhisschoolwork,AndyKliseadmitshewouldp
Thereisabeliefamongmanyeducatorsthatstudentattentionpeaksduringthefirst15minutesofclassroominstruction—a(n)(1)
WriteonANSWERSHEETTWOanoteofabout50-60wordsbasedonthefollowingsituation;Youfailedtohandinyourthesisontim
ResearcherssaidMondaythathavingmorechildrenwillrunmorerisksofdeveloping
Hehaddifficultyin_______onefromtheother.
HowcanIeverconcentrateifyou______constantly______mewithsillyquestions.
随机试题
计算机网络是计算机技术和()的结合。
患者,男性,39岁,平素吸烟,喘咳痰多。与人争吵后,突然昏厥,喉中痰鸣,舌苔白腻,脉沉滑。治法是
患者男性,35岁。突发胸闷,憋气,端坐呼吸,病情渐进性加重并出现发绀,X线示胸膜腔大量积气、肺萎陷。抽气后好转,但不久又加重,最大可能诊断是
A.卵泡刺激素B.黄体生成激素C.雌激素D.孕激素E.泌乳素
初孕妇。32岁。妊娠39周,剧烈持续腹痛4小时入院。查体:贫血貌,血压100/70mmHg,脉搏120次/分,子宫硬,宫缩间歇不松弛,有局限性压痛,胎位不清,胎心110次/分,阴道少量流血,宫口未开。为明确诊断首选的辅助检查是
用于连接距离较大且有角度变化的两轴,宜采用()联轴器。
根据我国立法法的规定,下列哪一项属于地方性法规可以规定的事项?()
某土著人为提高后代的战斗力,对新生婴儿进行身体素质测试。他们把初生的婴儿放在恶劣的自然环境中检验其生命力的强弱。抛弃那些病弱的、经不起考验的婴儿,留下那些健壮的婴儿。这一方法并没有使当地的土著人强盛,反而衰落了。以下哪项最适合作为当地土著人选拔人才
Incommonwithmanycountries,Britainhasseriousenvironmentalproblems.In1952,morethan4,000peoplediedinLondonbecaus
Thestatistics______thatlivingstandardsintheareahaveimproveddrasticallyinrecenttimes.
最新回复
(
0
)