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
Exciting new research indicates that growing older might not necessarily mean growing mentally slower. New studies are providing
Exciting new research indicates that growing older might not necessarily mean growing mentally slower. New studies are providing
admin
2016-06-19
38
问题
Exciting new research indicates that growing older might not necessarily mean growing mentally slower. New studies are providing breakthroughs in our understanding of how aging affects memory, language, and other cognitive functions. This information could provide tools for lessening or even averting some loss in brain functioning often associated with old age.
If science can help older citizens retain their mental abilities longer, then the whole nation would benefit. That’s why it is so important for research on the aging mind to flourish. The government should make studying neural health, the role of life experiences in shaping the brain, and the structure of the aging mind — key priorities in these years. And the National Institute on Aging should undertake major research initiatives in these areas to expand the scientific basis for understanding and promoting healthy mental aging.
Revolutionary advances in neuron-science, behavioral science, and the science of learning have opened the door for the development of new techniques and technologies that can preserve mental sharpness in older people. These might be as novel as transplanting genetically engineered cells to replace disfunctional neurons or as familiar as engaging in stimulating intellectual and physical activities.
As many jokes about losing brain cells illustrate, it has long been thought that age-related decline in cognitive abilities is a result of diminishing neurons and synapses. But scientists have discovered that as people grow old, a drop in certain mental abilities may have more to do with changes in the health of the nervous system. For example, the mild loss of memory that is often associated with growing old may be linked to biochemical shifts in neurons rather than to actual loss of brain cells. Research aiming at identifying the mechanisms that maintain or impair neural health is critical for advancing our knowledge of aging.
In addition, exciting studies under way around the country arc exploring the degree to which older people can benefit from certain kinds of mental practice. We are only beginning to understand the pliability of cognitive functioning in people who are already old, but the promise of finding ways to maintain abilities is very real. For example, studies indicate that our life experiences can bring about lasting changes in our brains that shape how we age. Aging people with college or postgraduate degrees, for instance, generally have better cognitive functioning, such as language and reasoning than those with less education. And better-educated people who reach their 80s — when much of the decline in brain functioning typically occurs — experience far fewer cognitive problems than their less-educated peers. Scientists believe that formal education and professional training lead to more dense and complex associations among neurons that maintain functions even when those associations weaken.
The author is_____about finding a way to retain mental abilities.
选项
A、passive
B、negative
C、skeptical
D、optimistic
答案
D
解析
推理题。本题定位到最后一段第二句话。根据最后一段第二句“but…the promise of finding ways to maintain abilities is very real”说明找到保持智力的方法还是很有可能的。可见作者对此持乐观态度。故选项D“乐观的”正确。
转载请注明原文地址:https://kaotiyun.com/show/LgG7777K
0
大学英语六级
相关试题推荐
A、Sheisn’tgoingtochangehermajor.B、Sheplanstomajorintaxlaw.C、Shestudiesinthesameschoolasherbrother.D、Shei
Insomewaystheemploymentinterviewislikeapersuasivespeechbecausetheapplicantseekstopersuadetheemployertoemploy
A、Tryingtokeeppacewithyournext-doorneighbors.B、Tryingtokeepincontactwithyourneighbors.C、Tryingtogetalongwell
A、BecausetheywereforcedtodosobytheBritishgovernment.B、Becauseitbestservestheneedsofitsnativespeakers.C、Beca
A、Setupyourownwebsite.B、Consultthebank’srepresentatives.C、Trybymakingtransfers.D、Checkyourstatements.B女士建议向银行客户服
A、FindinformationontheU.S.DepartmentofStatewebsite.B、Preparesomeextramoneyfortheemergencypassport.C、Contacthe
A、Bendingandstretchingofthebody.B、Payingattentiontoone’sbreath.C、Tryingtohaveablankmind.D、Seekinghelpfromrel
A、Mailthewomanacatalogassoonaspossible.B、Lookforanextracatalogforthewoman.C、Givethewomantheinformationshe
A、Tocomplainaboutthewebservice.B、Toaskfortheaccountinformation.C、Topaythewomanhisrent.D、Tonotifythewomanhi
A、Zika.B、Mosquitoes.C、Malnutrition.D、Unknownyet.D录音提到,世界卫生组织(WHO)的一份报告明确指出巴西microcephaly爆发的成因还没确定(yettobedetermined),故D项
随机试题
党风问题是关系党的生死存亡的问题,党的作风建设的核心是()
第一部专门分析方剂的理论专著是
局限于上颌骨内的上颌骨动静脉畸形,其供血动脉为
对一个股骨下段开放性骨折并活动性出血的病例,现场急救时首先要作的处理是
财务评价中的企业资产负债表与实际企业的资产负债表的主要区别是()。
某企业为增值税一般纳税人,2019年5月销售自产电视机10台,开具增值税专用发票注明价款30000元,另外取得延期付款利息2260元,则该企业当月应缴纳增值税()元。
中央电视台《智力闯关》栏目共有四轮,每轮设有一个问题,能正确回答问题者进入下一轮考核,否则即被淘汰。已知某闯关选手各轮问题能否正确回答互不影响,则该选手至多进入第三轮考核的概率为。(1)该选手能正确回答第一、二、三、四轮问题的概率分别为;
已知实二次型f(x1,x2,x3)=xTAx的矩阵A满足tr(A)=-6.AB=C,其中用正交变换将二次型化为标准形,并写出所用的正交变换;
Amajoraspectofmanyfirms’marketingstrategiesoverthepastdecadehavebeenthedevelopmentofnewproducts.【M1】______Co
A、Theseshoesdon’tfitme.B、Yes,Iwanttobuysomeshoes.C、Canyoushowmethoseones,please?D、Youarewelcome.C要求营业员拿所看中
最新回复
(
0
)