英语,学士位自考书第四单元.doc

英语,学士位自考书第四单元.doc

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1、UnitFourHealthTextATheBellyFat-StressConnectionMostpeoplelookasbodyfatasanenemyandtheyshouldtoacertainextent.However,inunderstandinghowtobeatbellyfat,ithelpstounderstandthegeneticallyengineeredreasonsthatwestorebodyfatthewaywedoandthedifferencesberweenmo

2、dernlifeandthewayourancestorslived.Itakkstartedwithsimplesurvival.Withouttheabilitytoeasilysrorefatsomeofuswouldnotevenbehereonthisearthtoday,sothankyourancestorsforimprovingthehardinessofyourfamily’sgenepoolandkeepingyouinthemix.Despitefat’svalueintheev

3、olutionaryschemeofthings,excessbellyfatcancausemanyproblemsandI’mnottalkingaboutwhetheryoucantieyourskin-hasbeenassociatedinrecentyearswithallkindsofhealthproblemsrangingfromheartdisease,tostrokesandtodiabetes.Fatcanbecosmeticallyfrustrating,butbellyfatc

4、analsobedeadly.Genderisonefactorthataffectswhereyoustoreyourfat.Menstoremostofitintheirbelly,whilewomenstoremorefatintheirhipsandthighs.Womenstorebodyfatinthelowerbodybecauseofchildbirthandhormonalreasons.Butwhydoesthefatgotheresoquicklyandeasily?Whydoes

5、n’titjustevenitselfoutallacrossthebodyratherthanconcentratinginoneunsightlyarea?Andwhydowegetbellyfatinthefirstplace?Obviously,thefirstreasoniscaloricexcess.Thatisalwaystrueinmalesandinfemales,sobeforeyoustartpointingyourfingeratgender,hormonesoranything

6、else,lookathowmuchyou’reeatingeverydayfirst.Attheriskofcontinuingtostatetheobvious,thesecondreasonisnotenoughexercise.Intoday’smoderntechnologicallyadvancedsociety,wedonotworklikeourgrandparentsdid,andourwaistlinesshowit(在今天的现代科技发达的社会中,我们与祖辈的工作方式有了很大不同,从

7、我们的腰围上就能看出来).Ialsobelievethatinoursocietytoday,wearemuchmorestressedoutthanourancestorswere.Sure,therewerefightorflightsituationsinthenaturalenvironmentwhichwenolongerhavetoday,butthoseoccasionalnaturalphenomenahavenowbeenreplacedbycontinuousdailystressf

8、romourregulardailyworkload(当然了,过去的那些在自然环境中所存在的“战斗还是逃跑”的情况已经不复存在了,但这些偶然的自然现象正在被不断来袭的日常工作负担所取代,了解fightorflight).Combinethatwiththereducedexerciseandincreasedportionsizesandavailabilityoffood,andcouldthisbeathirdreasonforbell

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