1、2020年職稱英語考試衛(wèi)生類B級閱讀（5）SleepProblemsPlaguetheOlderSetOlderAmericansoftenhavedifficultygettingagoodnightsrest.Itsahugequality-of-lifeproblem,expertssay,becausecontrarytopopularbelief,seniorsrequireaboutthesameamountofsleepasyoungeradults.“Sleepproblemsandsleepdisordersarenotaninherent（固有的）partofaging,”

2、saidDr.HarrisonG.Bloom,anassociateclinicalprofessorofgeriatrics（老年病學）andmedicineattheMountSinaiSchoolofMedicineinNewYorkCity.“Itsprettymuchofamyththatolderpeopleneedlesssleepthanyoungerpeople.”Yet,inastudypublishedrecentlyinTheAmericanJournalofMedicine,researchersfoundthatmorethanhalfofolderAmerican

3、shaveproblemsgettingthesleeptheyneed.Olderpeopletendtohave“sleepfragmentation,”meaningtheywakeupmoreoftenduringthenight,saidstudyauthorDr.JulieGammack,anassistantprofessorofmedicineintheDivisionofGeriatricMedicineatSt.LouisUniversity.Theyalsoseemtogetless“REM”sleep,thetypeofsleepduringwhichrapideyem

4、ovementoccurs,Bloomadded.It'sunclearwhatrolethesenaturallyoccurringchangesinsleeppatternshaveonaperson'squalityoflife,Bloomsaid.“Whatisimportant,though,isthatolderpeopleoftenhaveactualsleepdisordersandproblemswithsleep,”hesaid.And,expertssay,thereisusuallymorethanonecause.“Sleeptroubleinolde

5、radultsistypicallyassociatedwithacuteandchronicillnesses,includingspecificsleepdisorderslikesleepapnea（呼吸暫停）andrestlesslegsyndromethatappearwithgreaterfrequencyinolderpopulations,”saidMichaelV.Vitiello,aprofessorofpsychiatryandbehavioralsciencesandassociatedirectoroftheUniversityofWashington'sNo

6、rthwestGeriatricEducationCenter.Takingmultiplemedications,asmanyolderpeopledo,canalsoleadtofatigueand“hypersomnia,”orbeingtiredallthetime,Bloomadded.Anotherbigproblem,henoted,isdepressionandanxiety.“Thoseareverycommonlyassociatedwithsleepproblems.”Despitetheprevalence（流行）ofsleepdifficultiesinolderad

7、ults,manypatientsarentgettingthehelptheyneed.Asaresult,problemslikeinsomnia（失眠）,restlesslegsyndromeandsleepapneaareunderdiagnosedandundertreated,Bloomsaid.1. Sleepproblemscanseriouslyaffectonesqualityoflife.A.RightB.WrongC.Notmentioned2. Itistruethatolderpeopleneedlesssleepthanyoungerpeople.A.RightB

8、.WrongC.Notmentioned3. YoungerpeopleinAmericaseldomcomplainofsleepdisorders.A.RightB.WrongC.Notmentioned4. ThenumberofolderAmericanswithsleepproblemsisnotsmall.A.RightB.WrongC.Notmentioned5. “Sleepfragmentation”referstoamarkedlackof“REM”sleep.A.RightB.WrongC.Notmentioned6. Thecausesofsleepproblemsinolderpeopleremainunidentified.A.