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
40
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://jikaoti.com/ti/HNbMFFFM
0
专业英语四级
相关试题推荐
FiveCommonMistakesinConversationsandTheirSolutionsI.NotlisteningA.Problem:mostpeople【T1】________
Lastweekoilpricesfinallystoppedrising.Theynowhoveraround$43abarrel,a20-yearhigh.TheaverageAmericanfamilyw
ThroughouttheU.S.studentsaregettingouttheirNo.2pencils,readyendureastress-packedfourhoursofbubblinginanswers
Womenaregettingunhappier,ItoldmyfriendCarl. "Howcanyoutell?"hedeadpanned."It’salwaysbeenwhine-whine-whine."
(1)Themultimilliondollarbraintrainingindustryisunderattack.InOctober2014,agroupofover100eminentneuroscient
Inordertoensurethesafetyofstudents,alotofschooladministratorsareconsideringinstallingsecuritycamerasoncampu
PassageOne(1)Themultimilliondollarbraintrainingindustryisunderattack.InOctober2014,agroupofover100emine
Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout
Thelittlegirlcouldnot______hertearswhenhermotherwasdressingthewound.
Thebabymonkey______toitsmotherallday.
随机试题
假定某公司在未来无限时期支付的每股股利为8元,必要收益率为10%,当时该公司股票价格为65元,通过计算分析该股票是否具有投资价值。
A.通过动脉的血流量增加B.血管阻力降低C.两者皆有D.两者皆无
A.咽痛伴发热2天B.咽痛伴张口受限2天C.咽痛伴饮水呛咳,讲话含混不清2天D.咽痛伴咳痰带血丝2月E.咽痛伴声嘶2天扁桃体周围脓肿最有可能的表现是
男,45岁。发作性呼吸困难5年,再发3天,伴咳嗽,咳白色泡沫痰,无咯血、发热。有甲状腺功能亢进病史1年。查体:BP135/90mmHg,呼气延长,双肺可闻及哮鸣音。发生呼吸困难最可能的机制是
A.外科手术预防用药B.治疗性应用基本原则C.内科预防性应用原则D.联合应用要有明确指征E.特殊病理生理状况患者应用原则诊断为细菌性感染者.方有指征用药
雨期开挖路堑时要注意的事项有()。
马克思说:生产就其单方面形式来说也决定于其他要素,例如,当市场扩大,即交换范围扩大时,生产的规模也就增大,最后,消费的需要决定着生产。这句话表明()。
在我国,法律监督的主体是国家机关。()
わたしの勤めている会社はビルの三階にありますから、毎日階段を登って会社に行きます。もちろん、車がありますが、雨の日以外は利用しません。電車で通っているのです。
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"butwithoutthedramaticmusic.Ahugesharkwaslowlyswimmingthrough
最新回复
(
0
)