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ID:11442401
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时间:2018-07-12
《走路是最佳减压方式之一》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、走路是最佳减压方式之一最新一项研究发现,快走或慢跑能够刺激大脑神经细胞从而使神经官能放松达到镇静减压的作用。研究人员通过两组老鼠的对比实验发现,经常跑动的老鼠大脑中会产生大量能够抑制大脑活动并镇静兴奋细胞的神经元,在压力环境中,这些神经元能够迅速被大脑释放以抑制不必要的焦虑反应。研究人员指出,经常跑动的老鼠对抗压力的能力更强,这在人类身上也同样适用。Oneofthebestwaystorelievethestressesofthedayistosimplywalkthemaway,scientistshavefound.Walkingbrisklyorjoggin
2、greallydoescalmyoudownbysparkingnervecellsinthebrainthatrelaxthesenses,newresearchhasshown.Exercisehaslongbeenthoughttobeeffectiveforanxietyanddepression,butthebrainmechanismbehindthephenomenonhasremainedamystery.Nowtestsonmiceshowwhentheyareactive,soothingneuronsinthebrainaretriggere
3、d.Whentheyarethenexposedtoastressor,theseneuronscalmthemdown.Researcherstooktwogroupsofanimals,onethatranaroundandanotherthatwassedentary,andthentestedtheamountofbraincellsthatformedaftertheyexercised.Therunners' brainshadanumberofnewneuronsspecificallydesignedtoinhibitbrainactivityan
4、dquietmoreexcitableones.Theresearchersthenputthemiceintoicecoldbathstocreateastressfulenvironment.Asexpected,largenumbersofexcitableneuronswerefiredupinthehippocampus,aregionofthebraininvolvedinemotionalresponses.Butinthebrainsoftherunners,calmingneuronswerealsoquicklyreleasedwardingo
5、ffunnecessaryanxiety.Theresearchshowsexercisingmiceareabletocopebetterwithstress,anditisbelievedtheeffectisalsoseeninhumans,reportstheJournalofNeuroscience.ProfessorElizabethGould,ofPrincetonUniversity,NewYork,saidphysicalactivityreorganizesthebrainsoanxietyislesslikelytointerferewith
6、normalfunction.Shesaid:'Understandinghowthebrainregulatesanxiousbehaviorgivesuspotentialcluesabouthelpingpeoplewithanxietydisorders.'Italsotellsussomethingabouthowthebrainmodifiesitselftorespondoptimallytoitsownenvironment.'Thefindingsresolveaparadoxbecauseexercisereducesanxietywhilea
7、lsopromotingthegrowthofnewneuronsinthehippocampus.Becausetheseyoungcellsaretypicallymoreexcitablethantheirmorematurecounterparts,exerciseshouldresultinmoreanxiety,notless.Buttheresearchersfoundexercisealsostrengthensthemechanismsthatpreventthesebraincellsfromfiring.ProfGouldsaididenti
8、fying
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