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
39
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.
According to the research, which of the following activities consumed the most calories?
选项
A、Relaxing in a sitting position.
B、Reading professional books.
C、Summarizing a text.
D、Completing tests on the computer.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/yOTO777K
0
研究生英语学位课统考(GET)
相关试题推荐
PersonalcomputersandtheInternetgivepeoplenewchoicesabouthowtospendtheirtime.Somemayusethisfreedomtosharele
Allthepeopleinthestadiumcheeredupwhentheysawhundredsofcolorfulballoons______slowlyintothesky.
Weneedallinformation______totheeconomicaspectsofthatcompany’sactivities.
HumanCloningTheapplicationsofcloningasweenvisionarenotnightmarishandinhumane,butwillimprovetheoverallqual
Some23millionadditionalU.S.residentsareexpectedtobecomemoreregularusersoftheU.S.healthcaresysteminthenext
Thesearchforlatentprintsisdoneinasystematicandintelligentmanner.Investigatorsdeveloptechniquestolocatetraceso
Itisanoffencetoshow______againstpeopleofdifferentraces.
Agreatdealofattentionisbeingpaidtodaytotheso-calleddigitaldivide—thedivisionoftheworldintotheinfo(informatio
Therearevariouswaysinwhichindividualeconomicunitscaninteractwithoneanother.Threebasicwaysmaybedescribedasth
随机试题
中国共产党明确规定并写进党章,以邓小平理论作为自己的指导思想是在
患者长期吞咽受阻,饮食不下,面色咣白,精神疲惫,形寒气短,面浮足肿,泛吐清涎,腹胀便溏,舌淡苔白,脉细弱。应诊断为
产品组合的目标是有效地分配企业的有限资源,取得尽可能大的稳定经济效益。()
幕墙工程应对材料及其性能指标进行复验的有()。
不参与保险合同的订立,对保险合同不承担义务,但享有权利的人是()。
基于调整性筹资动机的筹资往往会增加企业的资本总额。()
2014年9月1日,某工业企业转让一项专利权,该专利权成本为250000元,累计摊销50000元。取得转让价款为300000元。不考虑其他因素,则下列关于转让专利权的会计处理正确的是()。
纪录对于()相当于()对于小说
根据以下资料,回答下列问题。2012年全国公路水路交通固定资产投资14512亿元,占全社会固定资产投资的3.9%。分地区看,西部地区交通固定资产投资5400亿元,所占比重为37.2%,比上年提高1.2个百分点;东、中部地区交通固定资产投资分别为5479亿
通过计算机某些部分的改进而获得的性能增益可以用阿姆达尔定律计算出来,该定律指出:利用更快的执行方式而获得的性能改善所受到的限制是
最新回复
(
0
)