永发信息网

LONDON----Here’s a new warning from health experts: Sitting is deadlyScientists are inc

答案:2  悬赏:60  手机版
解决时间 2021-01-03 20:32
LONDON----Here’s a new 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. 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 EkblomBak 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(调节) the amount of glucose(葡萄糖) and fat in the body start to shut down.
  Even for people who exercise, spending long periods 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.(一回)
  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.
  We don’t have enough evidence yet to say how much sitting is bad, said Peter Katzmarzyk of the Pennington Biomedical Research Center in Baton Rouge, who led the Canadian study. But it seems the more you can get up and interrupt this sedentary behavior, the better.
  Figures from a U.S. 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 tooffset 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.
【小题1】What is the best title for the text?A.Not Sitting Too Much While WorkingB.How To Avoid Sitting Too MuchC.Sitting Too Much Could Be DeadlyD.More And More People Sit Too Much【小题2】According to the research, .A.the more time you spend in exercising in a single bout, the healthier you will be.B.those who often sit too much are sure to grow fat or suffer from a heart attack.C.regular exercise is effective to get rid of the side effect of sitting too much.D.you had better not sit for more than four hours in a single bout.【小题3】How does the danger of sitting too much affect the human body?A.It results in a higher death risk.B.It increases glucose and fat in the body.C.It makes a person unable to exercise long enough in a day.D.It causes the gene to fail to balance the glucose and fat in the body.【小题4】In the opinion of Ekblom-Bak, you’d better have a rest in the office by .A.sending your friends e-mailsB.having a walk around your officeC.chatting online or playing computer gamesD.listening to music with your head on the desk.C
最佳答案
(答案→)C 解析:可联系答.案.网客服索取。
全部回答
我明天再问问老师,叫他解释下这个问题
我要举报
如以上问答信息为低俗、色情、不良、暴力、侵权、涉及违法等信息,可以点下面链接进行举报!
大家都在看
非洲女人的 奶?
纹身可以出国吗
Itwaswithgreatjoy_______heworkedouttheprob
还贷款做什么科目
试用期没过就辞职需要注意哪些问题
还贷款需要什么手续
新浪微博粉丝怎么才可以增长的快?
垄断市场什么意思
补写下列名篇名句中的空缺部分。(任选3题,
第二节完形填空(共20小题;每小题1分,满分2
重庆市第二车管所在什么地方啊,我要处理点事
3(2010·吉林东北师大附中高三第一次摸底考
如何学好六年级英语
巴南区车管所地址在什么地方?想过去办事
为什么会规定熟人不能在同一地方工作?
推荐资讯
微信提现最快多久,最慢多久?
下列命题中,假命题的是A.经过两点有且只有一
华南师范大学成考有心理学专业吗?
默写(18分)【小题1】衣带渐宽终不悔, 。
晨阳里社区居委会办公位置在哪啊?好找么?
Maybe you should .A. call on herB. call hi
大众凌度自动泊车视频教程
急,二手房房主不愿过户,希望高人指点,非诚
尾兽分别找的宿主是谁
________叫做平行线.
单选题自由落体运动在任何两个相邻的1s内,位
为了了解石家庄市八年级男生的身高,有关部门
正方形一边上任一点到这个正方形两条对角线的
阴历怎么看 ?