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
As concern over Alzheimer’s disease grows, more Americans are turning to expensive and potentially unsafe supplements that claim
As concern over Alzheimer’s disease grows, more Americans are turning to expensive and potentially unsafe supplements that claim
admin
2010-01-15
89
问题
As concern over Alzheimer’s disease grows, more Americans are turning to expensive and potentially unsafe supplements that claim to enhance memory. But prevention of age-related memory loss may be no further away than your refrigerator, and no more expensive than a bag of groceries, experts say. With the aging population of baby boomers in the United States, more research is being done than ever before on diseases such as Alzheimer’s and other forms of dementia. Scientists are developing a better understanding of why memories fade, and along the way they are finding new ways to combat the decline.
For one thing, research increasingly suggests that diet may be important in preventing Alzheimer’s. As the brain ages, it loses the ability to protect itself from the barrage of commonplace dangers it faces every day, particularly inflammation and oxidation, a process which allows damaging free radicals to attach themselves to cells.
While it’s not entirely clear what causes Alzheimer’s disease, amyloid plaque——a goopy, fibrous substance akin to fur balls in the brain——plays a key role. As the plaque builds up, it causes more oxidation and inflammation, and begins to kill off brain cells. In addition, brain cells often stop communicating with each other as people age, making it harder for the brain to process thoughts, retain short-term memory and create new cells.
"Old neurons are like old married couples——they don’t talk to each other very much any- more. They just sit in the room with the remote and stare at the TV," says Dr. James Joseph, director of the Neuroscience Lab at the Human Nutrition Research Center on Aging at Tufts University in Boston. While research in the field of aging and nutrition is still in its infancy, scientists have found that diet may help minimize the brain’s sensitivity to oxidation and inflammation, as well as improve brain cells’ ability to communicate with each other.
One of the most intriguing areas of research involves the role of antioxidants, potent chemicals in plants that protect against free radicals, highly active molecules that damage cells. Antioxidants are what give fruits and vegetables their bright colors. Plants produce these chemicals to protect themselves from environmental insults, such as pollution, and when humans eat plants, they also reap the protective benefits.
According to the passage, _________ may prevent Alzheimer’s disease.
选项
A、physical exercise
B、diet
C、operation
D、anti-inflammation medicines
答案
B
解析
理题。文章第二段提到“…research increasingly suggests that diet may be important in preventing Alzheimer’s.”(研究不断证明饮食在预防“阿耳茨海默氏症”方面的重要性不能低估),所以正确答案是B。
转载请注明原文地址:https://kaotiyun.com/show/nUnK777K
0
专业英语四级
相关试题推荐
FiveCommonMistakesinConversationsandTheirSolutionsI.NotlisteningA.Problem:mostpeople【T1】________
Googlemaybevaluedatmorethan$185billionandboastmillionsofusers,butthatdoesn’tmeantheInternetgiantisanymatc
Inmanycountries,whenpeoplegivetheirname,theyrefertothemselvesusingtheirlastnameorfamilyname.IntheUnited
(1)GabrielOakwasasensiblemanofgoodcharacter,whohadbeenbroughtupbyhisfatherasashepherd,andthenmanaged
A、22,000Australiandollars.B、16,000Australiandollars.C、12,000Australiandollars.D、10,000Australiandollars.A总结题。考生在听录音时
PassageOne(1)Arecentarticleindicatedthatbusinessschoolsweregoingtoencouragethestudyofethicsaspartofthe
PassageTwo(1)"Onemillionjobstovanishin10years,"shouttheMondaymorningheadlinesjusttogettheweekofftoag
PassageOne(1)FrankhaddrivenhismotherintoWahinetobuyMeggie’sdoll,andhewasstillwonderingwhathadprompted
Therearetimeswhenyourchildproudlypresentsyouwiththeirscribbleofastickfigurewithcrazyhair.Itmightworthacl
Clearlyifwearetoparticipateinthesocietyinwhichwelivemustcommunicatewithotherpeople.Agreatdealofcommunicati
随机试题
德国美学家黑格尔的重要美学论著是()
Humanbeingsare______creatures,designedtobeonthemove.
RPI卡环采用近中颌支托的主要目的是
A、咀嚼痛B、放散性锐痛C、自发性隐痛,冷热刺激痛D、阵发性电击样痛E、张、闭口痛下述疾病最可能表现出上述一种性质的疼痛是急性根尖周炎
采用净现值法评价计算期不同的互斥方案时,确定共同计算期的方法有()。
属于地区性定价方法的有()。
关注知识与权力、意识形态关系的教育学流派是()
下列有关法与社会关系的表述何者为正确?()
下列犯罪中哪些犯罪的主体为特殊主体?()
Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReadingPassage1below.CLASSIFYINGSOCIETIESAlthough
最新回复
(
0
)