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
According to a study, intellectual activities make people eat more than when just resting. This has shed new light on brain food
According to a study, intellectual activities make people eat more than when just resting. This has shed new light on brain food
admin
2013-05-29
16
问题
According to a study, intellectual activities make people eat more than when just resting. This has shed new light on brain food. This finding might also help explain the obesity epidemic of a society in which people often sit.
Researchers split 14 university student volunteers into three groups for a 45-minute session of either relaxing in a sitting position, reading and summarizing a text, or completing a series of memory, attention, and alert tests on the computer. After the sessions, the participants were invited to eat as much as they pleased.
Though the study involved a very small number of participants, the results were stark. The students who had done the computer tests downed 253 more calories or 29.4 percent more than the couch potatoes. Those who had summarized a text consumed 203 more calories than the resting group.
Blood samples taken before, during, and after revealed that intellectual work causes much bigger fluctuations in glucose(葡萄糖) levels than rest periods, perhaps owing to the stress of thinking.
The researchers figure the body reacts to these fluctuations by demanding food to restore glucose--the brain’s fuel. Glucose is converted by the body from carbohydrates (碳水化合物) and is supplied to the brain via the bloodstream. The brain cannot make glucose and so needs a constant supply. Brain cells need twice as much energy as other cells in the body.
Without exercise to balance the added intake, however, such "brain food" is probably not smart. Various studies in animals have shown that consuming fewer calories overall leads to sharper brains and longer life, and most researchers agree that the findings apply, in general, to humans.
And, of course, eating more can make you fat.
"Caloric overcompensation following intellectual work, combined with the fact that we are less physically active when doing intellectual tasks, could contribute to the obesity epidemic currently observed in industrialized countries," said lead researcher Jean-Philippe Chaput at Laval University in Quebec City, Canada. "This is a factor that should not be ignored, considering that more and more people hold jobs of an intellectual nature," the researcher concluded.
The word "stark" in the 3rd paragraph is closest in meaning to "______".
选项
A、negative
B、obscure
C、absolute
D、ambiguous
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/fOTO777K
0
研究生英语学位课统考(GET)
相关试题推荐
The______BritishtheoreticalphysicistStephenHawkingoncesaidinaninterviewthatheavenisafairystoryforpeopleafrai
Onthelargeboardinthemainhalloftheairport,youcaneasilyfindthedifferentdestinations______whichairlinescantake
MostpeoplewhodevelopedLymedisease,atick-borninfectionthat’sendemicinpartsoftheNortheastandMidwest,areeasilyc
Allthepeopleinthestadiumcheeredupwhentheysawhundredsofcolorfulballoons______slowlyintothesky.
InthepopularWesternimagination,Indiacontinuestobeacountryinbackwardnessandpovertywithlittletoshow______scienti
Peoplehavebeenpaintingpicturesforatleast30,000years.Theearliestpictureswerepaintedbypeoplewhohuntedanimals.
Thesearchforlatentprintsisdoneinasystematicandintelligentmanner.Investigatorsdeveloptechniquestolocatetraceso
Thesearchforlatentprintsisdoneinasystematicandintelligentmanner.Investigatorsdeveloptechniquestolocatetraceso
Agreatdealofattentionisbeingpaidtodaytotheso-calleddigitaldivide—thedivisionoftheworldintotheinfo(informatio
Hisproductiontechniquesareelaborateandnearlegendary,buteveniftheycouldbe______,itwouldn’tbethesameforanyoth
随机试题
下列有关中国宪法发展史的表述,何者为正确?()
按规定需要政府审批的项目,有下列情形之一的,经批准可以不进行设计招标,其中错误的是哪一项?[2005年第71题]
下列项目中,包括在自有资金现金流量表中而不包括在全部投资现金流量表中的是()。
应用动态控制原理进行建设工程项目目标控制时,产生的纠偏可采取多种纠偏措施,下列纠偏措施中不属于管理措施的是( )。
2008年全年,我国社会消费品零售总额为108488亿元,比上年增长21.6%,增速比上年加快4.8个百分点。请问,2006年全年社会消费品零售总额为多少?()
宪法规定,公民享有的政治自由和权利包括()
在最坏情况下,冒泡排序的时间复杂度为()。
Ahundredyearsago,thelargestcityintheworldwasLondon,withapopulationof6.5million.Today,itis【C1】______(dwarf)b
Whatshouldwedoifweneedthedetailsoreventupdates?
You’vegotnothingto______yourself--itwashisowndecision.
最新回复
(
0
)