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页数:16页
时间:2019-10-16
《高海拔对大脑的伤害和应对办法》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、OutsideMagazine,October2009户外杂志,2009年10月号Bodywork塑身AretheMountainsKillingYourBrain?高山会消灭你的大脑吗?Alarmingnewscienceshowsthatthinaircanwreckbraincells一atlowernititudesthanyou"dthink.Here"showtoprotectyourself.近来的研究结果令人担忧:在你预想不到的低海拔地带,稀薄的空气也可以摧毁脑细胞。下文将探讨如何保护你自己ByDouglasFieldsIntro(引文)Proclimberslik
2、eConradAnkerknowthesecretsofadjustingtothinair.Butnewscieneeshowsthatill-preparedamateurs—oranyonewhoascendstoofast—maybeputtingtheirbrainsatrisk(PhotographbyJimmyChin)图片说明:登山者的支持者比如ConradAnker(康拉德•安科尔,美国职业登山家)了解适应稀薄空气的秘密。但是新的研究显示,准备不足的业余爱好者-或任何攀升速度过快的人-或许会把他们的脑部置于险境。〃Y0UHAVETOBEpocolocotobeac
3、limber,,zsaysDr.NicholasFayed.AneuroradiologistattheClinicaQuirondeZaragoza,innorthernSpain,Dr.FayedleadsmeintohisofficeandpullsoutacollectionofMRIimages.They'rebrainscans,takenfromamateurandprofessionalmountainclimbersaftertheycamebackfrommeijorexpeditions,andtheresuItsarcn,tpretty.“成为一个登山者,你
4、必定有点儿疯狂。”NicholdsFayed(尼古拉斯•法耶德)博上说。他是西班牙北部的ClinicaQuirondeZaragoza(萨拉戈萨的凯龙诊所)的神经放射学科医生。他领我走进他的办公室,接着抽出了一叠核磁共振成像扫描图片。这些脑部扫描图片,是在一些业余的以及专业的登山运动员从主要的探险活动返回之后拍摄的,这些扫描结果并不乐观。"Atrophyofthefrontallobes,"Fayedsays,pointingtoab1ack~and-whitesiiceofbrainononeMRLThefrontaicortex—theregionjustbehindthefo
5、reheadthathandieshigher-levelmentaifunctions—lookslikeapieceofdriedfruit.Thiskindofdamagecanleavepatientswithanimpairedabilitytoplan,focus,andmakecomplexdecisions.Andit'spermanent."frontallobes(额叶,也叫大脑前庭)萎缩。”Fayed(法耶德)指着一张核磁共振成像扫描图片图片上的脑部黑口截面说。掌控高级神经功能的Thefrontalcortex(前额叶)正好位于前额后面,它的样子仿佛一片干果。
6、这种损伤导致病人的计划能力,集中注意力的能力以及在复合决策能力受损。这是一种永久性的损伤。"'Corticalatrophy,subcorticallcsion…〃Fayedcontinucs,pointingtothescansofeightamateurclimberswhoseMRIsweretakenin199&justafteratripupArgentis22,834-footAconcagua."Thisguysufferedthemostseriousdamage,"hesays.Hehandsmeapictureofarobustyoungclimberstand
7、ingonthemountain'ssnowyslopes,lookingfitanddetermincd."Whenhecameback,hecouldrftrememberhisownphonenumber.Hiswifewouldsendhimtothestoreforaloafofbreadandhewouldforgetwhyhewasthereandcomehomewithoutit."“皮质萎缩,皮质下的损坏……”Foyed(法耶德)指着八名业余登山者在
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