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
2015-02-12
39
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.
According to the passage, what is related to the health of the nervous system?
选项
A、The losing of brain cells.
B、Age-related decline in cognitive abilities.
C、A drop in certain mental abilities.
D、Diminishing neurons and synapses.
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/iyh7777K
0
大学英语六级
相关试题推荐
A、Givinglecturesinschools.B、Providingfreebottlesofsuncream.C、Providingbeachumbrellaattheseaside.D、Providingfree
A、Itwillcovermorebigpoliticalaffairs.B、Itwillcoverlessdisasters.C、Itwillcovermorescientificresearch.D、Itwon’t
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______anearlydiscussionwithavicepresidentofalarge
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______anearlydiscussionwithavicepresidentofalarge
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______anearlydiscussionwithavicepresidentofalarge
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______anearlydiscussionwithavicepresidentofalarge
HowCouldYourHobbyBetheKeytoFinancialSuccess?[A]Virtuallyeveryonehastheknowledgetheyneedtomakeafortune.Every
A、Homeeconomics.B、Businessadministration.C、Computerprogramming.D、Historicalresearch.B
随机试题
气体压送机械按其压缩比分类,可分为()、()、()和()四类。
Drawingapictureisthesimplestwayofputtinganideadownonpaper.Thatis【C1】______menfirstbegantowritesixthousandye
A.吡喹酮B.贝尼尔C.地克株利D.三氯苯咪唑E.伊维菌素防治猪蛔虫病可选用
时行感冒的特征是()
设计评审包括()。
下列关于级配碎石(碎砾石)基层施工技术要求,正确的有()。
购买方作为合并对价发行权益性证券的发行费用,应当冲减资本公积(资本溢价或股本溢价),资本公积(资本溢价或股本溢价)不足冲减的,冲减留存收益。()
目前集装箱运输是成组运输的最高形态。
A、B两地相距320千米,甲、乙二人驾车分别从A、B两地相向而行,甲每小时行36千米,乙每小时比甲多行8千米。甲、乙各有一部对讲机,对讲机的使用范围是40千米。那么,甲、乙二人出发后()小时可以开始用对讲机联络。
现在一些人往往利用手机传播色情信息,危害很大。于是有人建议政府尽快立法禁止12岁以下儿童使用手机。你怎么看?
最新回复
(
0
)