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
Here’ s a warning from health experts: Sitting is deadly. Scientists are increasingly warning that sitting for prolonged periods
Here’ s a warning from health experts: Sitting is deadly. Scientists are increasingly warning that sitting for prolonged periods
admin
2020-12-14
23
问题
Here’ s a warning from health experts: Sitting is deadly. Scientists are increasingly warning that sitting for prolonged periods—even if you also exercise regularly—could be bad for your health. And it doesn’ t matter where the sitting takes place—at the office, at school, in the car or before a computer or TV—just the overall number of hours it occurs.
Research is preliminary, but several studies suggest people who spend most of their days sitting are more likely to be fat, have a heart attack or even die.
In an editorial published this week in the British Journal of Sports Medicine, Elin Ekblom-Bak of the Swedish School of Sport and Health Sciences suggested that authorities rethink how they define physical activity to highlight the dangers of sitting.
While health officials have issued guidelines recommending minimum amounts of physical activity, they haven’ t suggested people try to limit how much time they spend in a seated position.
"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. She explained that genes regulating the amount of glucose and fat in the body start to shut down.
Even for people who exercise, spending long stretches of time sitting at a desk is still harmful. Tim Armstrong, a physical activity expert at the World Health Organization, said people who exercise every day—but still spend a lot of time sitting—might get more benefit if that exercise were spread across the day, rather than in a single bout.
That wasn’t welcome news for Aytekin Can, 31, who works at a London financial company, and spends most of his days sitting in front of a computer. Several evenings a week, Can also teaches jiu jitsu, a Japanese martial art involving wrestling, and also does Thai boxing.
"I’m sure there are some detrimental effects of staying still for too long, but I hope that being active when I can helps," he said. "I wouldn’t want to think the sitting could be that dangerous."
Still, in a study published last year that tracked more than 17,000 Canadians for about a dozen years, researchers found people who sat more had a higher death risk, independently of whether or not they exercised.
Figures from a US survey in 2003-2004 found Americans spend more than half their time sitting, from working at their desks to sitting in cars.
Experts said more research is needed to figure out just how much sitting is dangerous, and what might be possible to offset those effects.
"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "But when they’re in the office, they should try to interrupt sitting as often as possible," she said. "Don’t just send your colleague an e-mail. Walk over and talk to him. Stand up."
What is the main idea of this passage?
选项
A、People should keep exercising
B、Exercising may not reduce the harm of sitting.
C、Sitting for long time is deadly.
D、How to eliminate the harm of sitting?
答案
C
解析
主旨题。本文主要讲述、了久坐危害健康,甚至引起死亡的研究发现,也就是文章开头,提到的 “Sitting is deadly.”(久坐会致命),C项正确,A项突出了“exercising”,偷换了文章主题;B项意为“锻炼身体可能不会缓解久坐的危害”,该说法片面:D选项意为“如何消除久坐的危害?”文章倒数第二段提到“Expertssaid more research is needed to figure out just how much sitting is dangerous,and whatmight be possible to offset those effects.”,可见目前还没有发现消除久坐危害的对策,故错误。
转载请注明原文地址:https://kaotiyun.com/show/BfP7777K
0
大学英语六级
相关试题推荐
TheAmericanWorkplaceIsBroken.Here’sHowWeCanStartFixingIt.[A]Americansareworkinglongerandharderhoursthanever
RichChildrenandPoorOnesAreRaisedVeryDifferently[A]ThelivesofchildrenfromrichandpoorAmericanfamilieslookmore
RichChildrenandPoorOnesAreRaisedVeryDifferently[A]ThelivesofchildrenfromrichandpoorAmericanfamilieslookmore
RichChildrenandPoorOnesAreRaisedVeryDifferently[A]ThelivesofchildrenfromrichandpoorAmericanfamilieslookmore
RichChildrenandPoorOnesAreRaisedVeryDifferently[A]ThelivesofchildrenfromrichandpoorAmericanfamilieslookmore
Travelwebsiteshavebeenaroundsincethe1990s,whenExpedia,Travelocity,andotherholidaybookingsiteswerelaunched,allo
A、AmericansvowtochangeitB、Itisnotasbadasitusedtobe.C、Americansknowhowbaditistotheirhealth.D、Americansdo
Crash.Shatter.Boom.Crash.Shatter.Boom.Smatteringofsillydialogue.Prettygirlscreams:"Dad!"Crash.Shatter.Boom.Sill
A、Operatingsystemswillcrash.B、Computernetworkswillbeattacked.C、Applicationswillbedamaged.D、Sensitiveinformationwi
随机试题
急腹症在诊断未明了时,禁忌使用热疗的原因是
阅读材料,根据要求完成教学设计。“获取网络信息的策略和技巧”模块强调学生在经历信息获取的过程中,掌握信息获取的策略与方法。教材着重要求学生学习网络信息检索的一般方法,归纳网络搜索引擎的使用技巧,这将为本模块其他内容和选修模块的继续学习奠定重要基础。本节学
根据财务制度和会计制度的规定,采用分期付款方式销售的开发产品,每期实现的销售收入,应按当期收到的价款或按合同约定的当期收价款确定。()
影响材料导热系数的主要因素有()。
库存现金限额由开户银行根据开户单位5~7天的日常零星开支所需要的现金核定。()
一般纳税人销售软件产品并随同销售一并收取的软件安装费、维护费和培训费等收入,应按照增值税混合销售的规定征收增值税,并可享受软件产品增值税即征即退政策。()
中小企业是我国最具活力的企业群体,在GDP中比重约为60%,提供了约70%的城镇就业岗位,但受需求不足、成本上升等不利因素的影响,中小企业的发展遇到较大困难,为此国家加大了对中小企业的扶持力度,这有利于()。
某地大规模爆发甲流,你被要求处理此事。你怎么做?
某学生努力学习数学,只是为了取悦数学老师,此时学生的学习动机类型是()。
Lookatthechartsbelow.Itshowsroadaccidentfiguresindifferentcountriesfrom1992to1999.Whichfiguredoeseachsenten
最新回复
(
0
)