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
20
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
Theschoolshootingtriggeredabarrageoftransparentlyirrelevantproposedsolutions,tossedoutwithoutregardtotheirrelev
The______BritishtheoreticalphysicistStephenHawkingoncesaidinaninterviewthatheavenisafairystoryforpeopleafrai
MostpeoplewhodevelopedLymedisease,atick-borninfectionthat’sendemicinpartsoftheNortheastandMidwest,areeasilyc
Thesearchforlatentprintsisdoneinasystematicandintelligentmanner.Investigatorsdeveloptechniquestolocatetraceso
Agreatdealofattentionisbeingpaidtodaytotheso-calleddigitaldivide—thedivisionoftheworldintotheinfo(informatio
Agreatdealofattentionisbeingpaidtodaytotheso-calleddigitaldivide—thedivisionoftheworldintotheinfo(informatio
Exceptionalchildrenaredifferentinsomesignificantwayfromothersofthesameage.Forthesechildrentodeveloptotheirf
Thechairmanofthecompanysaidthatnewtechniqueshad______improvedtheirproductionefficiency.
Goodnewsisbadnewsandbadnewsisgoodnews,newsmenoftensaytooneanother.Andwhenyoulookatthemediait’sonlytoo
Retailistough.Customershavetobeabletofigureoutwhichitemwillbestsuittheirneedswhileretailersneedtomakesure
随机试题
求幂级数x2n的和函数.
鼠型斑疹伤寒的病原体是
男性,18岁,春夏季反复发作双眼奇痒,睑结膜可见大小不等的乳头,结膜分泌物中较多嗜酸性粒细胞。本患者最可能的诊断为
下列选项中,有关建设项目的环境影响评价的规定,叙述错误的是()。
下列单位或个人取得房屋的情形中,可以由当事人单方申请房屋登记的有()。
国际劳工组织在其制定的《职业安全健康管理体系导则》(ILO-OSH2001)中,提出的职业安全健康管理体系运行模式包括方针()、计划与实施、评价、改进措施等五大要素。
教师必须十分重视自身的发展,做到以身作则、为人师表,这体现了教师劳动的特点。()
长时间暴露于寒冷环境或淹溺于冷水之中容易患上低温症,可能出现头晕、恶心、呼吸困难、失去意识等症状。下列关于应对低温症的做法,错误的是()。
抑郁是一把软刀子,它切割着你的心灵,你能感到痛苦,但是却看不到这把软刀子。每个人在人生的某一阶段、某一时刻都会经历抑郁的折磨,但有时自己又感觉不出来。其实抑郁的表现有很多种,比如在生活中感觉什么都没有意思,情绪低落,不愿说话,更不愿搭理他人,无精打采,唉声
Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontotheworld
最新回复
(
0
)