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
2015-04-30
51
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 are 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/Adh7777K
0
大学英语六级
相关试题推荐
Todaywearegoingtopracticeevaluatingthemaintoolusedwhenaddressinggroups—thevoice.Therearethreemainelementst
Todaywearegoingtopracticeevaluatingthemaintoolusedwhenaddressinggroups—thevoice.Therearethreemainelementst
A、Visitingcustomersthemselves.B、Visitingparksasordinarycustomers.C、Givingcustomersfreefoodonthestreet.D、Askingcu
Englishistheleadinginternationallanguage.Indifferentcountriesaroundtheglobe,English【B1】______themothertongue,ino
Part-TimeVegetarians[A]Forthelast15years,DawnJacksonBlatnerhasbeenwhat’snowcalleda"flexitarian"or"almostveget
Part-TimeVegetarians[A]Forthelast15years,DawnJacksonBlatnerhasbeenwhat’snowcalleda"flexitarian"or"almostveget
Part-TimeVegetarians[A]Forthelast15years,DawnJacksonBlatnerhasbeenwhat’snowcalleda"flexitarian"or"almostveget
Part-TimeVegetarians[A]Forthelast15years,DawnJacksonBlatnerhasbeenwhat’snowcalleda"flexitarian"or"almostveget
Piracyisgenerallybadforbusiness.Itcanunderminesalesoflegitimateproducts,depriveacompanyofitsvaluableintellect
随机试题
设矩阵,求A在初等变换下的标准型并求A的秩.
该病人需要的进一步检查是何项:上述检查未发现异常,应继续进行哪项检查:
药物的首过消除是指()。
山脊的等高线为一组()。
会计的两项基本职能是相辅相成、辩证统一的关系,下列说法中,正确的有()。
下列属于商业助学贷款实行的原则是()。
下列资产负债表项目中,需要根据相关总账所属明细账户期末余额分析计算填列的是()。
心理咨询师:咨询目标确定了,接下来我和您一起制订咨询方案。求助者:您自己制定咨询方案就可以了,我完全信任您,您让我怎么做我怎么做。心理咨询师:谢谢您的信任!但咨询方案必须我们两人共同制定。这样可以使我们双方都明确咨询的方向和目标,咨询方案中包括我们双方
阅读材料,根据要求完成教学设计。“表格的数据处理”是“Excel数据信息加工”一节的第一部分内容,主要介绍如何利用Excel对表格进行计算和排序。学生在学习这一部分内容之前,已经初步认识接触了Excel,对Excel的数据导入、查询等基础操作比较
下列选项叶1不符合良好程序设计风格的是()。
最新回复
(
0
)