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ADVERTI Is ageing an inevitable decline – or are there unexpected perks to getting older? David Robson reports. Do you ever worry that the prime of your life has already passed you by – and it didn’t even have the courtesy to let you know as it flew overhead? They say that life begins at 40, or that 60 is the new 50 – but what’s the truth? What’s the best age to be? To find out, BBC Future scoured the medical literature, examining how everything from your memory to your sex drive changes across the lifetime. And we were pleasantly surprised by what we found. Consider physical fitness. By David Robson 26 May 2015 Menu News Sport Weather Shop Earth Travel More

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  • 5/27/2015 BBCFutureWhatstheprimeofyourlife?

    http://www.bbc.com/future/story/20150525whatstheprimeofyourlife?ocid=fbfut 1/20

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    Isageinganinevitabledeclineorarethereunexpectedperkstogettingolder?DavidRobsonreports.

    Doyoueverworrythattheprimeofyourlifehasalreadypassedyoubyanditdidntevenhavethecourtesytoletyouknowasitflewoverhead?

    Theysaythatlifebeginsat40,orthat60isthenew50butwhatsthetruth?Whatsthebestagetobe?

    Tofindout,BBCFuturescouredthemedicalliterature,examininghoweverythingfromyourmemorytoyoursexdrivechangesacrossthelifetime.Andwewerepleasantlysurprisedbywhatwefound.

    Considerphysicalfitness.

    ByDavidRobson26May2015

    Menu

    News Sport Weather Shop Earth Travel More

  • 5/27/2015 BBCFutureWhatstheprimeofyourlife?

    http://www.bbc.com/future/story/20150525whatstheprimeofyourlife?ocid=fbfut 2/20

    Foractivitiesthatrequireshortandsuddenburstsofenergylikethe100msprint,shotput,orjavelinthestartingpistolshouldhavefiredbyyourmid20s,sincethereisarapiddeclinethereafter.Footballershittheirstrideevenyounger.

    "Somesportssuitolderathletesbetter

    Yetolderathletesperformmuchbetteringruellingultraenduranceevents,suchas100km,or1000km,marathons.Evenafteryour30sand40s,thedeclineisgradual.SunnyMcKee,forinstance,celebratedher61stbirthdaybycompetinginherfirstIronmanTriathlon,whichinvolveda180kilometre(112mile)cycleride,combinedwithamarathonand4km(2.5mile)swim.Indeed,manycompetitorsaresoaddictedtothesepunishingsportsthattheypushonintotheir70s.

    Atfirstglance,themindsfateislesscheering.

    (Credit:NigelHawtin)

  • 5/27/2015 BBCFutureWhatstheprimeofyourlife?

    http://www.bbc.com/future/story/20150525whatstheprimeofyourlife?ocid=fbfut 3/20

    Pastyour20s,yourabilitytocommitnewfactstomemoryhasalreadyseenbetterdays.Infact,ithadprobablystartedlosingitsshineevenbythetimeyoudleftschool.Ourcapacitytoholdinformationintheworkingmemorysuchasaroundofdrinksinthepubplateausforalittlelonger,butittoosteadilydropsinour40s.

    "Youhityourcreativepeakyoung

    Evenmoredepressingly,youmayhavealsopassedthezenithofyourcreativitymostNobelprizewinningdiscoverieshavebeenmadebyaround40andourwhitematter,thelongdistanceconnectionsthatformthebrainsinformationsuperhighways,tendtostartdwindlingtoo.Thatcouldmakethebrainslower,overall.

    Yetthereisasilverlining(andImnottalkingaboutyourhair).

    (Credit:NigelHawtin)

  • 5/27/2015 BBCFutureWhatstheprimeofyourlife?

    http://www.bbc.com/future/story/20150525whatstheprimeofyourlife?ocid=fbfut 4/20

    "Ourmentalabilitiesriseandfallinwaves

    Althoughfactsmaytakealittlelongertostick,otherskillskeepsondevelopingreadingcomprehensionandarithmetic,forinstance,continuetoimproveintomiddleage.Socialreasoningourabilitytomanoeuvreourwaythroughthecomplexitiesofourfriendshipspeaksevenlater.Inotherwords,ourmentalabilitiesriseandfallinwavesasonecresthaspassed,anotherisonitsway.Theresnoageatwhichwearebestateverythingorevenmostthings,saysJoshHartshorneatHarvardUniversity,whoconductedmuchoftheresearch.

    Therecouldevenbeanupsidetoyourflagginglibido.

    (Credit:NigelHawtin)

  • 5/27/2015 BBCFutureWhatstheprimeofyourlife?

    http://www.bbc.com/future/story/20150525whatstheprimeofyourlife?ocid=fbfut 5/20

    "30%ofhealthypeopleaged6574havesexatleastonceaweek

    Ifsitcomsandmoviesaretobebelieved,your20sand30saresomethingofanongoingorgy.Infact,neithersexualdesire,norsexualactivity,falloffveryquicklyuntilwellintoyour50s.Andeventhenthedeclineisfarfromprecipitous.Accordingtoonepaperexaminingsexuallyactivelifeexpectancy,menwhoare55todaycanexpectanother15orsoyearsofrelativelyfrequentsexwomenofthatagecanexpectslightlymorethanadecade.Intercoursemaynotbequiteasregularorvigorousasitoncewas,butaccordingtothatstudy,30%ofhealthypeopleaged6574stillenjoysexatleastonceaweek.

    Whatsmore,thefallingsexdrivemayhaveothercompensationsjustasyourlibidostartsfalling,yourzestforliferises.Thisissomethingofaparadox,giventhephysicalcomplaintsthatcomewithage,butitcouldbepartlydowntothefactthatyouhavefinallylearnttobalanceyouremotionsafterthetumultofthepreviousdecades.

    Elixirofyouth?

    Sowhatarewetotakeawayfromthesefindings?Crudelyspeaking,youmayconclude

    (Credit:NigelHawtin)

  • 5/27/2015 BBCFutureWhatstheprimeofyourlife?

    http://www.bbc.com/future/story/20150525whatstheprimeofyourlife?ocid=fbfut 6/20

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    thatyouareatyoursexualpeakinyour20s,yourphysicalpeakinyour30s,yourmentalpeakinyour40sand50sandatyourhappiestinyour60sbutthesearejustaverages,soyourowntrajectoriesmayfollowverydifferentpaths.Perhapsmoreimportantisthegeneralrecognitionthatagebringsitsequalsharesofupsanddownsthereisno,overall,primeofyourlife.

    "Thesecrettopeakinglater?Unfortunatelyitrequireseffort

    Themorehearteningnewsisthatsomeofthelesswelcomepitfallsarelessinevitablethanyoumightimagine.Exercise,inparticular,notonlyensureslongerphysicalfitness,andfightsarangeofagerelateddiseaseslikediabetesandcancer,butalsostrengthensaweakeningmemorytoo.Peopleingoodhealthalsoenjoyaboutfivemoreyearsofsexualactivityattheendofthelife.Itreallyistheclosestwevegottoanelixirofyouth.

    Psychologistsarealsorealisingthatyourmentalattitudecouldplayabiggerrolethanyoudthink.Somepeoplereportfeelingyoungerthantheiryearsayouthfuloutlookthatcancausethemtobemoreactive,andlivelongerasaconsequence.Inotherwords,somelimitationsmaybeselfimposed,ratherthanbeinganinevitableproductofourbodyswearandtear.

    Nothingcanhelpusreversetheprocessofageing.Butbymappingtheterrainandacknowledgingthehighsaswellasthelows,wecanatleastmakeitamorepleasantjourney.Anotherpeakmaybeyettocome.

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