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
2010-03-19
73
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 people can also benefit from vitamin E in non-staples.
B、The regular Vitamin E intake is effective to all file 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,需要找到与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 protective benefit from the vitamin as those
转载请注明原文地址:https://kaotiyun.com/show/Ck9K777K
0
专业英语四级
相关试题推荐
Heistheonlypersonwhocan______inthiscase,becausetheotherwitnesseswerekilledmysteriously.
WhenFranklinD.RooseveltwaselectedPresidentoftheUnitedStatesin1932,notonlytheUnitedStatesbutalsotherestoft
Thestarsawakenacertainreverence,becausethoughalwayspresent,theyareinaccessible.Infact,allnaturalobjectsmakea
Beingconsideredaleaderinoursocietyistheultimatecompliment."LeadershiphasbecometheuniversalvitaminCpill,"says
InBritainarrangementsforinvitingandentertainingguestsataweddingareusuallytheresponsibilityofthebride’sfamily.
Blindpeopleusuallypossessoneadvantageoverotherpeoplewhocansee:theirsenseofhearingisfarmoreacute.Soundswhich
WhatnewmissionisSpaceAdventuresplanning?
AdictionaryofEnglishlanguage,______byDrSamuelJohnson,wasthefirstrealattemptasasystematicandinterestinglywrit
Withinthatexclusivegroupofliterarycharacterswhohavesurvivedthroughthecenturies—fromHamlettoHuckleberryFinn—fewc
Withinthatexclusivegroupofliterarycharacterswhohavesurvivedthroughthecenturies—fromHamlettoHuckleberryFinn—fewc
随机试题
光子的吸收导致视杆细胞外段出现超极化感受器电位,其产生机制是
根据《基本农田保护条例》规定,下列不属于基本农田保护方针的是()。
施工单位应当建立健全安全生产责任制度和安全生产教育培训制度,制定安全生产规章制度和操作规程,对所承担的建设工程进行()安全检查,并做好安全检查记录。
当前我国的工程建设监理主要是在工程项目建设的( )阶段。
保险事故发生后,保险人已支付了全部保险金额,并且保险金额相等于保险价值的,受损保险标的的全部权利归于保险人;保险金额低于保险价值的,保险人按照保险金额与保险价值的比例取得受损保险标的的部分权利。( )
通常在预期市场利率上升时,发行人会发行可赎回债券。()
下列项目中属于资产负债表中“流动资产”项目的有()。
某企业实行标准工时制。2018年3月,为完成一批订单,企业安排全体职工每工作日延长工作时间2小时,关于企业向职工支付加班工资的下列计算标准中,正确的是()。
下列化学用语使用正确的是()。
阅渎以下史料,并回答问题:大农上盐铁丞孔仅、咸阳言:“山海,天地之藏也,皆宜属少府,陛下不私,以属大农佐赋。愿募民自给费,因官器作煮盐,官与牢盆。浮食奇民欲擅管山海之货,以致富羡,役利细民。其沮事之议,不可胜听。敢私铸铁器煮盐者,钬左趾,没入其器物。郡不
最新回复
(
0
)