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时间:2019-10-14
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1、Givingupsmokingcanreducestresslevels:studyByAmyNortonJun16,10:29pmET,2010Reuters1.NEWYORK-SmokersoftensaytheyneedacigarettetocalmtheirnervesbutaBritishstudyhasfoundthatchronicstresslevelsmaygodownafterapersonkicksthehabit.2.Astudyof469smokerswhotriedtoquitafterbeinghospitalizedforheart
2、diseasefoundthatthosewhostayedawayfromcigarettesforayearreportedareductionintheirperceivedstresslevels.3.Stresslevelswereessentiallyunchangedamongheartpatientswhowentbacktosmoking,accordingtoresearchersfromBartsandTheLondonSchoolofMedicineandDentistry・4.Thestudy,reportedinthejournalAdd
3、iction,supportedthetheorythat,atleastforsomepeople,smokingactuallycontributestochronicstress.5.nSmokersoftenseecigarettesasatooltomanagestress,andex-smokerssometimesreturntosmokinginthebeliefthatthiswillhelpthemcopewithastressfullifeevent/1researcherPeterHajektoldReutersHealthinanemail
4、.6.Yetstudieshaveshownthatnon-smokerstendtoreportlowerstresslevelsthansmokersdo.7.Thereasonforthatdifferencehasbeenunclear,butitcouldmeanthatpeoplevulnerabletostressaremorelikelytotakeupsmoking.8.Ontheotherhand,smokingitselfmaygeneratelong-termstress,evenifpeoplefeelitoffersthemtempora
5、ryrelieffromtryingsituations.9.Hajek'sstudyfoundthatmostofthe469smokers一85percent—believedatthestartofthestudythatsmokinghelpedthemdealwithstresstosomeextent.HalfsaidthatthehabitHverymuch"helpedthemcope.10・Butoneyearlater,thestudyparticipantsweresurveyedagainatwhichpoint41percenthadnot
6、returnedtosmoking.11.Onaverage,Hajekandhiscolleaguesfoundtheabstainersshoweda20percentreductionintheirreportedstresslevels,whilepatientswhohadgonebacktosmokingshowedlittlechangeintheirperceivedstress.12.Therelationshipbetweenabstinenceandreducedstressheldupwhentheresearchersaccountedfo
7、rfactorssuchaspatients1ageandeducation,howheavilytheyhadsmokedbeforequitting,andhowhightheirstressscoreswereatthestartofthestudy.13.Theresearcherssaidthefindingssupporttheideathatdependencyoncigarettesisitselfachronicsourceofstress.14.HWhendependentsmokerscannotsmoke,astheperiodwitho
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