戰機世界。

飛行學校- 第二集(World of Warplanes: Flight School - Episode 2). 422. 中文 ...Hi.It'sMr.Andersen.TodayI'mgoingtotalkaboutthefightorflightreaction.ThisisoneofmyfavoritevideosonYouTube.Thisisfromyoutube.com/RussiaToday.Sowegotthispersonherewalkingdownthestreet.Allofasuddentheyrealizethere'sacarcomingandthentheygetoutoftheway.NowifIweretokeepplayingittheguyjumpsoutofthecar,comesrunninginthisdirection.ButbasicallyIwanttotalkaboutwhat'sgoingon.Sooncethisguyseesthecar,howdoeshenumberonegetoutoftheway?Andthenhowdoesthataffecthisbody?Howdoesthataffecttheorgansandthechemistryandallofthatinsidehisbody.Andsothatwholethingiscalledthefightorflight.AndsowhenIaskstudents,youknow,howdoeshegetoutofthewayofthecar?Theanswerisalwaysadrenaline.Andtherightanswerisno,it'snotadrenaline.Adrenalineisnotgoingtobeabletogettherethatquickly.Andsohowdoestheguyreallygetoutoftheway?Well,he'sgoingtoseethecarcoming.He'sgoingtoprocessthatinhisbrain.Andthenhe'sgoingtosendamessagedownhisnervoussystem.Thatnervoussystemisgoingtobeattachedtomuscles.AndthosemusclesaregoingtohaveATPreadytogo.Andsothewayhe'sabletojumpoutofthewayandnotgethitbythecar,doesn'thaveanythingtodowiththefightorflightresponse.It'ssimplyhisnervoussystem,hismusclesandjustrespondingtothatthreatimmediately.Butifyou'veeverbeeninasituationlikethat,whereyoujustbarelysurviveanaccidentorsomethinglikethat,allofthesuddenyoufeelthisrushofjustyourheartstartsbeatingfastoryourbreathing.Youfeelwarm.Nowthat'spartofthefightorflightresponse.Becausethisguyrighthere,sincehe'slivinginacity,isabletojustkindofwalkbackontotheroadandkeepabouthisbusiness.Butbackinthedayifyouwereattackedbyamountainlionorsomebodyelse,youhadtofightnow.Youhadtoflee.Oryouhadtoattacktheattacker.Andsoallofthatispartofwhat'scalledthesympatheticnervoussystem.Orthatsysteminsideourbodythatallowsustofightorflight.Andsolet'szoominsidethisguyandtalkalittlebitmoreabouthowarethefightorflightworks.Andsoit'sbasicallycenteredaroundhisbrain.Andsointhecenterofhisbrain,nearthebottomwehavesomethin