职称英语《卫生类B级》考试教材新增

xx年职称英语《卫生类B级》考试教材新增 　Today we hear more and more about the importance of getting enough sleep—abou

xx年职称英语《卫生类B级》考试教材新增 Todaywehearmoreandmoreabouttheimportanceof gettingenoughsleep—abouteighthoursanight.Sleepcan helphealandgiveenergytoboththebodyandthebrain.1 Itseemsalmostcertainthatthethirdofourlivesthatwe spendasleephasagreateffectonthetwo-thirdsthatwe areawake.Sleepaffectsouremotions,memory,focus,and behavior. Studiesshowthatpeopleindevelopedcountriesspend lesstimeasleepandmoretimeatworkormuting.Dr. KarineSpiegel,attheUniversityofChicago,hasfound thattheaveragelengthofsleephasgonedownfromnine hoursanightin1910toseven-and-a-halfhoursanight today.However,ourbodiescannotfunctionwellwithout enoughsleep.2AordingtoCanadianscientistDr.Stanley Coren,everyhouroflostsleepatnightcausesustolose oneI.Q.pointthenextday.Forexample,whensomeonegets onlyfiveorsixhoursofsleepeachnightforaweek,the person’sI.Q.couldgodown15pointsormore.3 Mostsleepexpertssaythathumansneedatleasteight hoursofsleepeveryday,butitshouldbeintwostages:a longsleepatnightandashorternapintheafternoon. Somepanieshelptheiremployeesfollowthisadvice.4They saythismakestheworkersmuchmoreefficient.