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
64
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.
We can infer from the passage that people suffering from Alzheimer’s disease will _________.
选项
A、lose their memory when they grow old.
B、lose the ability to protect themselves.
C、result in inflammation and oxidation.
D、die a few years after the disease is detected.
答案
A
解析
推理题。Alzheimer’s disease的中文是“阿耳茨海默氏症”,又名“早老性痴呆症”,是痴呆病(dementia)的一种,其显著特点是fade of memory(记忆退化),所以正确答案是A。选项B和D文中没有涉及。文中虽然涉及到了选项C,但是文中的意思是inflammation(发炎)和oxidation(氧化)会影响大脑细胞的正常运转,并没有提到“阿耳茨海默氏症”会导致发炎和氧化。
转载请注明原文地址:https://kaotiyun.com/show/9UnK777K
0
专业英语四级
相关试题推荐
(1)"Britain’sbestexport,"IwastoldbytheheadoftheDepartmentofImmigrationinCanberra,"ispeople."Closeon100,0
OnWednesday,Sept.23,PresidentBarackObamausedhisfirst-everaddresstotheU.N.GeneralAssemblytotryandreversethe
A、Lobbyingtheparliamenttopassthelegislation.B、Workingonapieceoflegislationaboutschoolfunding.C、Workingwithauth
Anarrowingofyourinterestsisimpliedinalmostanytransitionfromastudyenvironmenttomanagerialorprofessionalwork
A、Upto12hours.B、Upto20hours.C、Upto18hours.D、Upto24hours.B细节题。录音中提到:underpresentimmigrationregulations,intern
PassageThreeWhyarethecontrolsofamoderncarcriticized?
PassaaeFourWhenmostanimalsdie,naturelikestotidyupbymakingtheirbodiesdisappear.Theremainsgeteatenbyscave
Morethanfortythousandreaderstolduswhattheylookedforinclosefriendships,whatthe 【C1】______friends,whattheywere
HowmanymillionaireshaveStanleysurveyedbeforehewrotehisbook?
Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout
随机试题
我国常设的仲裁机构是()
德国规定包装材料的“3R”原则分别是即可再生利用(“Reuse”)、可自然降解(“Reduce”)还原、可进行循环再生处理(“Recycle”)。()
已知A公司2019年年初负债总额为4000万元,年初所有者权益为6000万元,该年的所有者权益增长率为150%,年末资产负债率为25%,平均负债的年均利息率为10%。全年固定经营成本总额为6925万元,净利润为10050万元,适用的企业所得税税率为25%。
F公司为一家上市公司。该公司20×1年有一项固定资产投资计划(项目资本成本为9%),拟定了两个方案:甲方案原始投资额为100万元,在建设期起点一次性投入,项目寿命期为6年,净现值为27.25万元。乙方案原始投资额为120万元,在建设期起点一次陛投入,项目寿
业主大会成立后在银行开立住宅专项维修资金专户的,应当以()为单位设账。
求助者一般资料:王某,女,33岁,外企人力资源部经理,研究生,未婚。求助者主诉:今年我已经三十三岁了,还没有男朋友。母亲在生我的时候因为大出血去世了,只有父亲来照顾我,后来父亲再娶,后妈对我很不好。后妈生了一个妹妹,比我小五岁,妹妹身材很好,皮肤
赈灾义演,请你作为主办方做3分钟演讲。
某汉字的机内码是D1E2H,它的国际码是
ThethiefWastryingtosteal__________."I’llteachyoualesson"hereMeans"I’ll__________."
IsecondMr.Smith’smotionthatwe______aspecialboardtoexaminetheproblem.
最新回复
(
0
)