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第PAGE\*MERGEFORMAT8页共NUMPAGES\*MERGEFORMAT8页 英语六级巅峰阅读附详解第62期:饮食健康 Womenwhodrankthreeormorecupsofcoffeeadaywere30percentlesslikelytohavememorydeclineatage65thanwhosewhodrankonecuporlessdaily.Andthebenefitincreasedwithage.Womenoverage80whodrankthreeormorecupsofcoffeeadaywereabout70percentlesslikelytohavememorydeclinethanthosewhodrankonecuporless.theresearcherssaid.Caffeinatedteahadthesameeffectinthewomen.thestudyfound,althoughmorewasneededtogetthesamecaffeineboost."Countroughlytwocupsofteaforacupofcoffee,"saidstudyleaderKarenRitchieofINSERM,theFrenchNationalInstituteforHealthandMedicalResearch.Buttheresearchersdidn'tfindasimilarlyprotectiveeffectinmen,althoughotherstudieshavefoundabenefittomales.Howmightcaffeinehelpwardoffcognitivedecline?"Itisacognitivestimulant."saidRitchie.Italsohelpstoreducelevelsoftheproteincalledbetaamyloidinthebrain.shesaid."whoseaccumulationisresponsibleforAlzheimer'sdiseasebutwhichalsooccursinnormalaging."Ritchiesaidshewasn'tsurewhymeninthestudydidn'tbenefitfromcaffeine."Ourhypothesisisthateitherwomenmetabolizecaffeinedifferentlythanmen,ortheremaybeaninteractionofthecaffeinewiththesexhormones.theestrogen-progesteronebalance,"shesaid.TheFrenchstudyconfirmspreviousresearch,saidWilliamScott.professorofmedicineattheUniversityofMiamiMillerSchoolofMedicine.whohasresearchedcaffeine'sbeneficialeffectsagainstParkinson'sdisease,alsoaneurodegenerativedisorder.Asforcaffeineonlyprotectingwomen,Scottnotedthatjust2,800ofthe7,000studyparticipantsweremen.andtheresultsmighthavedifferedifmoremenwereincluded.AstudypublishedinFebruaryintheEuropeanJournalofClinicalNutritionlookedat676healthymenandfoundthatregularcoffeedrinkershadalowerrateofcognitivedeclineovera10-yearfollow-upthanthosewhodidn'tdrinkcoffee.Thosewhodrankthreecupsdailyhadtheleastsignsofdecline.BothScottandRitchieagreedthatmorestudyisneeded.Ritchie'sresearchwillnextlookattherelationshipbetweencaffeineandAlzheimer's.女性每天喝三杯或更多咖啡，到65岁时记忆衰退的可能性比那些每天只喝一杯或更少咖啡的人要小30%。[1]而且这样的益处随年龄的增长而增加。据研究者称，80
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