首页
登录
职称英语
Which Vitamin Boosts Brain Power? Vitamin
Which Vitamin Boosts Brain Power? Vitamin
游客
2023-11-20
45
管理
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. [br] When researchers conducted a three-year study involving nearly 3,000 people older than 65, what should these people do first?
选项
A、They should fill up a dietary form regularly.
B、They should enable the researchers to evaluate.
C、They should compare different effects of Vitamin E.
D、They should take a regular diet as advised.
答案
A
解析
根据提问,在第三段里找到The participants also completed dietary questionnaires periodically, which enabled the researchers to determine their vitamin E intake这句话里说明他们要定期填写有关饮食的调查表。
转载请注明原文地址:http://tihaiku.com/zcyy/3202487.html
相关试题推荐
Thebodyapparentlyresentsbeingdosedwithunusualamountsofavitaminormin
WhichVitaminBoostsBrainPower?Vitamin
WhichVitaminBoostsBrainPower?Vitamin
WhichVitaminBoostsBrainPower?Vitamin
Takingmorevitaminthanthebodyneedsdoesnotmakeitfunctionbetter______o
Thebodyapparentlyresentsbeingdosedwithunusualamountsofavitaminormin
随机试题
•Readthefollowingpassagewhichadvisescandidateshowtoanswerdifficultin
AlthoughIspoketohimmanytimes,henevertookany______ofwhatIsaid.A、noti
Thefourbloodtypesare【C1】______asA,B,AB,andO.BloodtypeA【C2】______
[audioFiles]2018m4s/audio_ezfj_201804_035[/audioFiles]SleepwalkingSlee
Acarismadeupofmorethan30000parts.Eachpartinanewcarisasweak
体质constitution
严格操作规程接种卡介苗后,出现严重的播散性结核病,常见原因是A、有潜伏的结核病病
诊断6个月至6岁小儿营养性缺铁性贫血的标准,其血红蛋白值应低于的数值是( )。
秦汉时期,中华文化在中国和世界文明史上都有重要地位,表现在()。 ①开始成
关于地役权的说法,正确的有()。A.需役地上的用益物权转让时,受让人同时享有地役
最新回复
(
0
)