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1、有头脑的人的选择thethinkingman'schoicecontactismade.nervesorderthehearttopumpfaster.adrenalinsurgestoaction.nervesconstrictthebloodvesselsintheextremitiesofthebody.skintemperaturedrops.fingersandtoesgrowcolder.bloodpressurejump.analcoholicoradopeaddictinthefirststagesofa"cure"?amanbeingcatapu
2、ltedintoouterspace?no!theseeffectsstemfromsmokingjustonecigarette.theunitedstatespublichealthserviceisissuingcontinualwarningstosmokers.iftheyabstainpletelyfromsmoking,theirchancesofacquiringlungcancerwillbeonein275.theirchancesofdyingoflungcancerwillbeonein10iftheybeeheavysmokers─two
3、ormorepacksaday.lungcancerisfatalin95percentofallcases.butinspiteofglaringevidenceandfrequentwarnings,thepublicissmokingmoreandmore.thedepartmentofagricultureestimatesthatthisyear'sconsumptionofcigaretteswillreach180packsperpersonfifteenyearsofageandover.howmanycigarettesdoesthismeanp
4、erperson?─3600.whyissmokingsuchanimportantproblem?becausesmokingisnotamerehabit,assomanythinkitis.no,itismoreseriousthanthat.ahabitcanbebrokeneasilyenough,butanaddictioncannot.smokerslapseintohelplessness!danielschubert,oftheuniversityofchicago,quizzed226studentsatalargenorthwesternco
5、llegeabouttheirsmokinghabits─whytheystarted,whatsatisfactiontheygot,andiftheywantedtostop.accordingtoschubert,theywantedtoquitsmoking;buttheycouldn't.第31页共31页ifoneisaddictedtocigarettes,heisdependentuponthemphysically,aswellaspsychologically.whatisit,ifitisnotaddiction,thatmotivatesam
6、antogooutinsub-zeroweathertobuyapackofcigarettes?ifnecessary,hewilldrivetenmileslateatnighttofindanopendrugstore.whatisit,ifitisnotaddiction,thatmakesamoocherofanotherwisecharmingyounggirl?iwastalkingtoaprofessornotlongagowhohadjustquitsmoking.hetoldmewhatmostofyoualreadyknow─thatonce
7、thehabitisstarted,watchout!itisnexttoimpossibletostopsmoking.iaskedhimhowheevermanagedtoquitwhenhehadbeensmokingoverapackadayfortenyears.listentohisstory."well,icutdowntoone-halfpackadayforthefirstweek.iwastouchymostofthetime.theslightestirritationmademynervesjangleandmyheadwanttoexpl
8、ode.t
