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
42
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://jikaoti.com/ti/bNbMFFFM
0
专业英语四级
相关试题推荐
Let’sNotHideHealthCosts Weareawashinhealth-careproposals.PresidentBushhasone.SodoesCalifor
(1)Afteralongdayattheoffice,manyofusfindourselvestakingoutourstressonfriends,children,orsignificantothe
(1)Themultimilliondollarbraintrainingindustryisunderattack.InOctober2014,agroupofover100eminentneuroscient
Anarrowingofyourinterestsisimpliedinalmostanytransitionfromastudyenvironmenttomanagerialorprofessionalwork
A、Enjoyingmassageinthehotel.B、Attendingthefilmfestival.C、Surfingandswimming.D、Fishingandshopping.A细节题。此题也用排除法解答。找
PassageTwoWhatdoestheword"they"in"thantheywerebeforethepandemic"refertoinPara.7?
PassageThreeWhatdoesthefirst"it"in"itjustpreservedit"refertoinPara.7?
Newtechnologylinkstheworldasneverbefore.Ourplanethasshrunk.It’snowa"globalvillage"wherecountriesareonlysec
Everyproductonthemarkethasavarietyofcostsbuiltintoitbeforeitiseverputupforsaletoacustomer.Therearecost
Itwas______thattherestaurantdiscriminatedagainstblackcustomers.
随机试题
卫星电视接收机按用途分为哪三种?
先天性睾丸发育异常包括
不属于风湿热的主要表现的是
下列各要素中()是影响城市交通容量的要素。
某建筑工程已经达到其设计使用年限,业主想继续使用,则()。
(2007年考试真题)上市公司审计应由两名具有证券相关业务资格的注册会计师签名。()
某事业单位拟采购一种特定的技术服务,经向社会公开招标没有合格标的,在此情形下,根据《政府采购法》的规定,该事业单位可以采用的采购方式是()。
“八荣八耻”中提出“以崇尚科学为荣,以愚昧无知为耻”,下列哪一历史事件中也曾提出过类似思想主张?()
当复选框的Value属性值为1时,表示()
Ihavebeenabarber(理发师)foroverthirtyyears.Theotherday,Iwashavinglunchwithsomeoftheother【C1】______inthetown.
最新回复
(
0
)