资源描述：
《医学考博英语范文精选35篇》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、药物滥用Over-utilizationofPharmaceuticalsIntheareaofantibioticsalone,themostprominentproblemhasbeentheover-utilizationofdrugs.TheCenterforDiseaseControl,forinstance,estimatesthat1/3oftheantibioticstakenonanoutpatientbasisintheUnitedStatesareunnecessary.Increasinguseofantibioticsislinke
2、dtotheincreaseoftheirresistancebybacteria;intheUnitedStates,14,000peopledieeachyearfromdrug-resistantinfectionspickedupinhospitals.Intermsofhealthcarecosts,therisinguseofpharmaceuticalshasprofoundconsequences.From1993to1998,forinstance,annualdrugexpendituresintheU.S.nearlydoubledfr
3、om$50.6billionto$93.4billion,mostoftheexpensesbeingbornebythird-partypayors.Totalspendingonprescriptiondrugsdoubledfrom1995to2000andtripledfrom1990to2000,constitutingoneofthemainfactorsdrivinguphealthcareexpendituresoverall.EatlesstolivelongerIftherewereadrugthathelpedonelivealongl
4、ife,almosteverybodywouldbuyit.Indeedthereissuchadrug.Itismoderateeating.Somescientistshaveprovedthisbyexperimentson200monkeysoneatingless.Howeverwhyisitso?Hereisadiscussion.First,itrelievesthegastricsystemofburdensoftoomuchproteinandfat.Theburdenmayresidesinintestinesandgiveswaytot
5、oxinand**substances.ThesubstancesharmtheCNSandaccelerateaging.Second,itpreventsbrainmetabolicdisordercausedbysatiety.Satietymultipliessomecellsthatinduce~andshortensupplyofoxygen,andbloodtothecortex,whichinturnshortenone’slifetime.Third,Satietydamagescells,whichacceleratesagingproc
6、ess.Thisiscausedbytoomanyfreeradicalsthatdamage,cause**etcandquickenaging.Fourth,longtermsatietyresultsinobesity,diabetes,**etc.Actually,thereweresometheoriesandtherapiesonmoderateeating,whichshouldbeadvocatedtoday.Toconclude,forourhealthandlongevity,pleaseeatless.1.ReductionofStud
7、ents’StudyLoadFacinghugeamountofhomework,frequentexamsandambitiousexpectationsoftheirparents,Chineseprimaryandmiddleschoolstudentsnowgrowupunderheavypressures.Thishastimeandagaintriggered(触发)thenationwidediscussiononwhetherornotweshouldreducethestudents’studyload.Somepeoplestrongly
8、advocatethatweshouldreduce
