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
68
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
TheWorldBank’sRealProblem TheWorldBankisundeniablyincrisis.Butnotbecauseitspresident,Paul
Inmanycountries,whenpeoplegivetheirname,theyrefertothemselvesusingtheirlastnameorfamilyname.IntheUnited
ThecultureoftheUnitedStatesisaWesterncultureoriginallyinfluencedbyEuropeancultures.Ithasbeendevelopedsince
Anarrowingofyourinterestsisimpliedinalmostanytransitionfromastudyenvironmenttomanagerialorprofessionalwork
Anarrowingofyourinterestsisimpliedinalmostanytransitionfromastudyenvironmenttomanagerialorprofessionalwork
MostofushaveanimageofastandardEnglishinpronunciation,andverycommonlyinGreatBritainthisis"ReceivedPronun
A、Chinesemedicineallowstotreatfullymanifestdiseases.B、Chinesemedicineassistsinmaintaininghealth.C、Chinesemedicine
PassageThree(1)Datingisatreacherousbusiness.Theremaybeplentyoffishinthesea,yetmanyareunhygienic,self-ab
(1)LarrySummersisright;thisyear’sFedsymposiuminJacksonHolewastriplydisappointing.Intheweeksbeforethegatheri
Asapublicrelationsofficex,heissaid______someveryinfluentialpeople.
随机试题
药品在境外因药品不良反应被暂停销售、使用或者撤市的,药品生产企业应当在获知后,()内书面报国家药品监督管理部门和国家药品不良反应监测中心。
技术方案研究就是通过(),确定拟建项目的生产技术、工艺流程、生产配方及生产方法、生产过程控制、操作规程及程序数据等,以确保生产过程安全、环保、节能、合理、通畅、有序。
某注册建造师A在2007年10月23日因重大责任事故罪被判刑三年,在服刑期间因有立功表现而减刑,于2009年12月28日提前释放。根据有关规定,A重新注册至少应在()之后才能提出申请。
下列属于商业银行境内托管账户收入范围的有()。
老百姓通过银行柜台认购凭证式长期国债的市场不属于( )。
不久前,英国科学家科文·沃维克在自己的手臂上植入一枚硅芯片,当芯片受到无线电波的刺激时,便会送出64位的辨识资料,可以达到验证身份等目的。有些人据此认为,未来可以通过在身体内植入芯片的方式,来极大程度地提高生活的便利性。人们将不需要携带身份证、信用卡等物品
对于循环队列,下列叙述中正确的是()。
A、Three.B、Six.C、Eight.D、Nine.DW:HowoftenshouldItakethesepillsandhowmanyshouldItake?M:Takethreepillseverye
Sometwentyyearsago,theperformanceofgirlsandboysinclasswascompared.Boys【B1】______betterinexams,sovariousmeasur
Readingleadershipliterature,you’dsometimesthinkthateveryonehasthepotentialtobeaneffectiveleader.Idon’tbeli
最新回复
(
0
)