11.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(36)Afor 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(37)B
Research is preliminary,but several studies(38)Cpeople who spend most of their days sitting are more likely to be fat,have a heart attack or even die.
In an editorial(39)Dthis 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(40)Bactivity to highlight the dangers of sitting.
While health officials have issued guidelines(41)Cminimum amounts of physical activity,they haven't suggested people try to limit how much time they spend in a seated(42)D
"After four hours of sitting,the body starts to send(43)Asignals,"Ekblom-Bak said.She explained that genes regulating the amount of glucoseand fat in the(44)Cstart to shut down.
Even for people who(45)D,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(46)Cstill spend a lot of time sitting-might get more benefit if that exercise were spread across the day.(47)Ain a single bout.
That wasn't(48)Dnews for Aytekin Can,31,who works at a London financial company,and spends most of his days sitting(49)Ca computer.Several evenings a week,Can also teaches jiu jitsu,a Japanese martial art(50)Bwrestling,and also does Thai boxing.
"I'm sure there are some detrimental(51)Aof staying still for too long,but I hope that being(52)Bwhen I can helps,"he said."I wouldn't want to think the sitting could be(53)Ddangerous."
Still,in a study published last year that tracked more than 17,000 Canadians for about a dozen years,researchers found people who sat(54)Chad 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(55)Djust how much sitting is dangerous,and wha t might be possible to offset those effects.
36.A.bad | B.good | C.mean | D.dead |
37.A.does | B.occurs | C.matches | D.dies |
38.A.advise | B.talk | C.suggest | D.say |
39.A.thrown | B.caught | C.seen | D.published |
40.A.biological | B.physical | C.psychological | D.logical |
41.A.commending | B.mending | C.recommending | D.communicating |
42.A.stand | B.state | C.post | D.position |
43.A.harmful | B.careful | C.wonderful | D.skillful |
44.A.head | B.arm | C.body | D.foot |
45.A.sleep | B.rest | C.walk | D.exercise |
46.A.and | B.so | C.but | D.then |
47.A.rather than | B.other than | C.more than | D.less than |
48.A.bad | B.harmful | C.disadvantage | D.welcome |
49.A.behind | B.back | C.in front of | D.forward |
50.A.referring | B.involving | C.taking | D.bringing |
51.A.effects | B.prefects | C.affects | D.offers |
52.A.inactive | B.active | C.interactive | D.positive |
53.A.such | B.little | C.lot | D.that |
54.A.less | B.fewer | C.more | D.further |
55.A.leave out | B.bring out | C.hold out | D.figure out |