首页
登录
职称英语
Back in 1975, economists plotted rising life expectancies against countries’
Back in 1975, economists plotted rising life expectancies against countries’
游客
2023-06-22
45
管理
问题
Back in 1975, economists plotted rising life expectancies against countries’ wealth, and concluded that wealth itself increases longevity. It seemed self-evident: everything people need to be healthy—from food to medical care— costs money.
But soon it emerged that the data didn’t always fit that theory. Economic upturns didn’t always mean longer lives. In addition, for reasons that weren’t clear, a given gain in gross domestic product (GDP) caused increasingly higher gains in life expectancy over time, as though it was becoming cheaper to add years of life. Moreover, in the 1980s researchers found gains in literacy were associated with greater increases in life expectancy than gains in wealth were. Finally, the more educated people in any country tend to live longer than their less educated fellow citizens. But such people also tend to be wealthier, so it has been difficult to untangle which factor is increasing lifespan.
Wolfgang Lutz and his colleagues have now done that by compiling average data on GDP per person, lifespans, and years of education from 174 countries, dating from 1970 to 2010. They found that, just as in 1975, wealth correlated with longevity. But the correlation between longevity and years of schooling was closer, with a direct relationship that did not change over time, the way wealth does. When the team put both these factors into the same mathematical model, they found that differences in education closely predicted differences in life expectancy, while changes in wealth barely mattered.
Lutz argues that because schooling happens many years before a person has attained their life expectancy, this correlation reflects cause: better education drives longer life. It also tends to lead to more wealth, which is why wealth and longevity are also correlated. But what is important, says Lutz, is that wealth does not seem to be driving longevity, as experts thought—in fact, education is driving both of them.
He thinks this is because education permanently improves a person’s cognitive abilities, allowing better planning and self-control throughout the rest of their life. This idea is supported by the fact that people who are more intelligent appear to live longer. [br] Why has it been difficult to decide which factor is increasing lifespan according to Para. 2?
选项
A、Because less educated people tend to be icher.
B、Because more educated people tend to live longer.
C、Because less educated people tend to live longer.
D、Because more educated people tend to be richer.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2773811.html
相关试题推荐
[originaltext]M:Doyouthinkthere’sdiscriminationagainstwomeninEnglandto
[originaltext]M:Doyouthinkthere’sdiscriminationagainstwomeninEnglandto
[originaltext]M:Doyouthinkthere’sdiscriminationagainstwomeninEnglandto
AfederaljudgeinCaliforniahasdismissedalawsuitagainsttheCoca-Colac
AfederaljudgeinCaliforniahasdismissedalawsuitagainsttheCoca-Colac
Backin1975,economistsplottedrisinglifeexpectanciesagainstcountries’
Backin1975,economistsplottedrisinglifeexpectanciesagainstcountries’
Thestruggleagainstmalnutrition(营养不良)andhungerisasoldasmanhimself
Thestruggleagainstmalnutrition(营养不良)andhungerisasoldasmanhimself
Thestruggleagainstmalnutrition(营养不良)andhungerisasoldasmanhimself
随机试题
水泥强度测定时,水灰比采用()。A.0.3 B.0.4 C.0.5
下列属于健康保险相关健康管理基本实践技能的有()?A.健康档案 B.健
评审员的行为准则包括()。A.不吃卡拿要 B.遵守保密协议 C.不损害
患者,女性,68岁,3年前因急性下侧壁心肌梗死接受PTCA治疗,左心功能正常,无
缺口分析是技术分析的重要手段之一,有关的技术分析著作常将缺口划分为()四
政府对工程质量的监督管理主要以()和与此有关的工程建设各方主体的质量行为
各级别轿车历年销售份额(%) B级型车与C级型车相比,比值最大的年份与比
血府逐瘀汤的功用是()A.活血祛瘀,养血清热 B.活血祛瘀,行气止痛
2021年6月,国家航天局发布我国“天问一号”火星探测任务着陆和巡视探测系列
自然人甲为一精神病人,因离家出走两年多,对是否申请其为宣告失踪人意见不一,下列人
最新回复
(
0
)