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
Women who drank three or more cups of coffee a day were 30 percent less likely to have memory decline at age 65 than whose who d
Women who drank three or more cups of coffee a day were 30 percent less likely to have memory decline at age 65 than whose who d
admin
2017-02-01
39
问题
Women who drank three or more cups of coffee a day were 30 percent less likely to have memory decline at age 65 than whose who drank one cup or less daily. And the benefit increased with age. Women over age 80 who drank three or more cups of coffee a day were about 70 percent less likely to have memory decline than those who drank one cup or less, the researchers said.
Caffeinated tea had the same effect in the women, the study found, although more was needed to get the same caffeine boost. "Count roughly two cups of tea for a cup of coffee," said study leader Karen Ritchie of INSERM, the French National Institute for Health and Medical Research.
But the researchers didn’t find a similarly protective effect in men, although other studies have found a benefit to males.
How might caffeine help ward off cognitive decline? "It is a cognitive stimulant," said Ritchie. It also helps to reduce levels of the protein called beta amyloid in the brain, she said, "whose accumulation is responsible for Alzheimer’s disease but which also occurs in normal aging."
Ritchie said she wasn’t sure why men in the study didn’t benefit from caffeine. "Our hypothesis is that either women metabolize caffeine differently than men, or there may be an interaction of the caffeine with the sex hormones, the estrogen-progesterone balance," she said.
The French study confirms previous research, said William Scott, professor of medicine at the University of Miami Miller School of Medicine, who has researched caffeine’s beneficial effects against Parkinson’s disease, also a neurodegenerative disorder.
As for caffeine only protecting women, Scott noted that just 2,800 of the 7,000 study participants were men, and the results might have differed if more men were included.
A study published in February in the European Journal of Clinical Nutrition looked at 676 healthy men and found that regular coffee drinkers had a lower rate of cognitive decline over a 10-year follow-up than those who didn’t drink coffee. Those who drank three cups daily had the least signs of decline.
Both Scott and Ritchie agreed that more study is needed. Ritchie’s research will next look at the relationship between caffeine and Alzheimer’s.
What is true about caffeinated tea?
选项
A、It affected women’s memory in the same manner as coffee.
B、It influenced women’s memory as effectively as coffee.
C、It boosted women’s memory in the same rate as coffee.
D、It contained the same amount of caffeine as coffee.
答案
A
解析
第2段首句中的the same effect与上一段提到的benefit所指相同,故本句表明含咖啡因的茶和咖啡以同样的机制影响女性的记忆衰退程度,选A。第2段首句中although引出的让步状语从句表明咖啡的作用比茶明显,因此B不正确,这样看来,D(茶和咖啡含有同量的咖啡因)也是不正确的;C针对的是增强记忆,而非其衰退程度,不符合文章的论点,也不正确。
转载请注明原文地址:https://kaotiyun.com/show/LKF7777K
0
大学英语六级
相关试题推荐
Foryears,scientistshavebeenstudyinghowmusicaffectsthebrainanditsfunctions.Classicalmusic,【B1】______songsbyMoza
A、CreatingAbstractExpressionism.B、Paintingpeopleandanimals.C、Sponsoringanewartmovement.D、Exploringrealisticmethods
A、Apoetrybook.B、Ahistorybook.C、Amysterybook.D、Somechildrenstories.C
VideogameshavebecomeincreasinglypopularinbotharcadesandtheaverageAmericanhome.Peopleofallagesandfromallwalk
NinetypercentofAmericansknowthatmostoftheircompatriotsareoverweight,butjust40percentbelievethemselvestobetoo
NinetypercentofAmericansknowthatmostoftheircompatriotsareoverweight,butjust40percentbelievethemselvestobetoo
A、Byinformingpeoplethatit’sanincurabledisease.B、Byprovidingeffectivemedicinetostopitstransmission.C、Bydisciplin
Depressionisoneofthedarkdemons(恶魔)ofadolescence.Upto1in12Americanteenagersisaffected,accordingtotheNational
Depressionisoneofthedarkdemons(恶魔)ofadolescence.Upto1in12Americanteenagersisaffected,accordingtotheNational
Afterdecadesofdecline,theshareofmotherswhostayhomewiththeirchildrenhas【C1】______risenoverthelastseveralyears,
随机试题
某市大型商场为增值税一般纳税人,2020年5月发生如下业务:(1)销售干姜、橄榄油等取得含税收入5万元;销售蔬菜取得含税收入8万元;销售速冻食品、方便面、副食品等取得含税销售收入10万元;销售其他食品取得含税收入50万元。(2)首饰柜台以旧换新销售金首
判定级数(a>0,a≠e)的收敛性。
男性,40岁,反复右上腹胀痛,不适半年,再发加重伴恶心、呕吐1天。查:体温40℃,无黄疸,右上腹明显压痛,血常规,白细胞22×109/L。查体发现右上腹压痛、肌紧张,可触及一包块,压痛(+),首先考虑的诊断是
从调查对象的总体中抽取一部分单位做为样本进行调查,并根据样本调查结果推断总体数量特征。这种调查方式是()。
四个杯子上各写着一句话。第一个杯子:每个杯子中都有酸性溶液;第二个杯子:本杯中是矿泉水;第三个杯子:本杯中不是蒸馏水;第四个杯子:有的杯子中不是酸性溶液。如果四句话中只有一句真实,则可以确定的是()。
下列属于立法的是()。
一只小型广告灯箱一年可以杀死约35万只昆虫。亮如白昼的夜晚还会严重影响昆虫特别是成虫的生命周期。昆虫是自然界食物链中的一个重要环节,很多小型动物、鸟类和蝙蝠以昆虫为主要食物,许多植物靠昆虫授粉,如果昆虫的种类和数量发生变化,必将严重影响生态环境。过度的照明
以RPM方式安装的Apache服务器,Apache的主配置文件是(18)。如果允许以“http://www.wg2006.com.cn/wg_wg.html”方式访问用户的个人主页,必须通过(19)指令设置个人主页文档所在的目录。
Thechairmanofthecompanysaidthatnewtechniqueshad_____improvedtheirproductionefficiency.
Roadrage,officerage,andevenrelationshipragearefamiliartous.Butnowidlenessragehasemerged.FrequentlyIhearpeo
最新回复
(
0
)