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
66
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.
It is implied that to avoid obesity, people who have to sit long should ______.
选项
A、think more and eat less
B、increase the intake of vitamins
C、skip some meals
D、eat less potatoes
答案
A
解析
转载请注明原文地址:https://www.kaotiyun.com/show/5OTO777K
0
研究生英语学位课统考(GET)
相关试题推荐
Theroomwasfullofpeopleandsmoke.Shestartedtofeel______withtheheatinside.(2003年清华大学考博试题)
ThedevelopmentandwidespreaduseofcomputertechnologyandtheInternethavetransformedhowwecommunicate,howwecommunica
HumanCloningTheapplicationsofcloningasweenvisionarenotnightmarishandinhumane,butwillimprovetheoverallqual
Itisreportedthatmentalhealthhasbecomeatroublesomeissue.Thenumberofpeoplecommittingsuicideisontherise.Youar
Ondayoneofmyself-proclaimedMonthofGratitude,myfive-year-oldsonwokeup"bored"at5:15a.m.,Ispiedaspeedingti
Agreatdealofattentionisbeingpaidtodaytotheso-calleddigitaldivide—thedivisionoftheworldintotheinfo(informatio
Exceptionalchildrenaredifferentinsomesignificantwayfromothersofthesameage.Forthesechildrentodeveloptotheirf
Goodnewsisbadnewsandbadnewsisgoodnews,newsmenoftensaytooneanother.Andwhenyoulookatthemediait’sonlytoo
AdolfHitlerwastherulerofGermanyfrom1933to1945.Guidedbyconceptsofelitismandracism,heestablishedabrutaltotal
随机试题
国家行政的性质是_________,无论是资本主义的“三权分立”制度还是社会主义的“议行合一”制度,国家行政都强调其“执行性”。
患者男性,53岁。体检时CT发现左下肺外基底段一1.2cm×1.5cm结节,为进一步评估结节性质,拟行肺部FDGPET/CT显像。下列有关PET/CT检查前准备不正确的是
发现甲类传染病时
(2008)钢筋混凝土结构构件的配筋率计算与以下哪项因素无关?
图中的哪一个不是二元体(二杆节点)?( )
会计记账凭证的档案保管期限是10年。 ( )
After________seemedanendlesswait,itwashisturntoenterthepersonnelmanager’soffice.
VB的数值型数据分为()两种。
Oursisatwo-partysystem.______permitonepartytodominateourlivesentirelydemocracywouldcollapseandwewouldhavedict
Single-sexEducationforGirlsI.Threemainargumentsagainstsingle-sexschools—Itgoesagainstthegoalofproviding【T1】
最新回复
(
0
)