Lifeisarollercoaster.Youcanscreameverytimeyouhitabump,oryoucanthrowyourhandsupandenjoytheride.——生活就像过山车。你可以在每次颠簸的时候尖叫，你也可以高举双手享受整个过程。
研究：坐过山车能排出肾结石？
Tryridingarollercoastertodislodgethosepainfulkidneystones
Justaskanyoneofthe,Americanswhodevelopkidneystones:Whatiftheexcruciatingpainofpassingoneofthoselittledevilscouldbepreventedbystrappingyourselfintoamake-believerunawayminetrain,throwingyourhandsintheairandenduringG-forcesashighas2.5foraboutthreeminutes?Wouldyoudoit?从30万患肾结石的美国人中去随便找个患者问问：若乘坐一辆越矿飞车，飞车如逃离般飞驰而过时手在空中乱舞，还要承受高达2.5G的重力三分钟，就能免去排出那些小个恶魔时的剧痛，你会去做吗？
Hellyeah,they’ddoit.废话，他们会的。
Inabitofmedicalresearchinspiredbystrangeandremarkablepatientaccounts,aMichiganStateUniversityurologistreportsthat,yes,ridingamedium-intensityrollercoastersuchastheDisneythemeparks’BigThunderMountainRailroadcanresultinthepainlesspassingofsmall,andevenafewlarge,kidneystones.密歇根州立大学的泌尿专家注意到了一些罕见病例，受其启发进行了医学研究。他们得出报告说，是的，玩一趟中等刺激的过山车，比如迪士尼乐园的巨雷山过山车，能无痛排出小粒甚至是一些大颗肾结石。
Forbestresults,rideintheback,where—rollercoasterafficionadosallseemtoagree—thethrillsaregreatest.Independentofkidneystonevolumeandlocation,findingsreportedSundayintheJournaloftheAmericanOsteopathicAssn.showedthatsittinginthebackoftherollercoasterresultedinanaveragepassagerateof63.89%.坐在过山车尾部效果最佳，过山车爱好者都知道坐在后面的座位是最刺激的。周日发表在《美国骨科协会杂志》上的调查报告表示，坐在过山车尾部平均排石率能达到63.89%。
Front-seatridesresultedinafarmoremodestpassagerateof16.67%.而坐在头部，排石率要低得多，只有16.67%。
Inwhatmagicalkingdom,youmaywellask,doessomeonethinktoconductsuchresearch?你完全可以问，得在什么魔法王国才做得出这种实验呢？
Dr.DavidD.Wartinger,aprofessoremeritusatMichiganStateUniversity’sCollegeofOsteopathicMedicine,initiatedthestudyafteraseriesofpatientsreportedsomethingalmosttoostrangetobelieve:InthewakeofridingBigThunderatWaltDisneyWorldinOrlando,Fla.,thesepatientssaidtheirkidneystonespassedpainlesslyfromthekidneythroughthenarrowductoftheureterandintothebladder.Inonecase,apatienttoldWartingerthathepassedonekidneystoneaftereachofthreeconsecutiveridesontherollercoaster.密歇根大学骨科医学退休教授大卫?沃汀格尔是研究发起者，之前有肾结石患者向他讲述了桩桩难以置信的怪事：他们在佛罗里达州奥兰多的迪士尼乐园玩了巨雷山过山车后，体内的肾结石就毫无痛感地从肾脏经由狭窄尿管排到了膀胱内。有一个案例的病人告诉沃汀格尔，他连着坐了三次过山车，每次都有一颗结石排出。
Usinga3-Dprintedmodelofthatpatient’skidney,Wartingerandhiscolleaguesimplantedthreekidneystonesofvarioussizesintotheupper,middleorlowerpassagewaysoftheclearsiliconemodel.Twoofthosemineralclusters,whichcanformasthekidneyfilterswastefromthebloodstream,weresmall-to-moderatesize—4.5millmetersand13.5mm.Thosemightpassthroughtheductleadingtothebladderwithoutincidentbutcouldalsocauseconsiderablepainanddis中科白癜风医院好吗北京白癜风手术费是多少