take control

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演讲稿也叫演讲词，它是在较为隆重的仪式上和某些公众场合发表的

讲话文稿。好的演讲稿，应该既有热情的鼓动，又有冷静的分析，要把

抒情和说理有机地结合起来，做到动之以情，晓之以理。语言要求做到准

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于抽象的话。要多用比喻，多用口语化的语言，深入浅出，把抽象的道理

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情传达给听众以及读者，使他们信服并在思想感情上产生共鸣，下面一起

来看下为大家精选的演讲稿。

觉肥是永远的课题，一些人为了减肥绞尽脑汁。节食，跑步，做瑜伽

似乎成为了减肥的必修课在美国，80%的女孩在她们10岁的时候便开始

节食。神经学家SandraAamodt结合自己的亲身经历，讲述大脑是如何

控制我们的身体的。节食减肥为何没效果?来听听她的说法吧!接下来由为

大家推荐TED演讲：为什么节食减肥没有效果，希望对你有所帮助!

ted演讲：为什么节食减肥没有效果(英语)

Threeandahalfyearsago,Imadeoneofthebestdecisionsof

wYear'sresolution,Igaveupdieting,stopped

worryingaboutmyweight,t

wheneverI'mhungry,andI'velost10pounds.

Thiswasmeatage13,tthat

picturenow,andIthink,youdidnotneedadiet,youneededa

fashionconsult.(Laughter)ButIthoughtIneededtoloweight,

andwhenIgaineditback,the

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nextthreedecades,erwhatI

tried,theweightI'dlostalwayscameback.I'msuremanyofyou

knowthefeeling.

Asaneuroscientist,Iwondered,whyisthissohard?Obviously,

howmuchyouweighdependsonhowmuchyoueatandhow

stpeopledon'trealizeisthat

hungerandenergyuarecontrolledbythebrain,mostlywithout

aindoesalotofitsworkbehindthescenes,

andthatisagoodthing,becauyourconsciousmind--howdo

weputthispolitely?--it''sgoodthatyoudon't

havetoremembertobreathewhenyougetcaughtupinamovie.

Youdon'tforgethowtowalkbecauyou'rethinkingaboutwhat

tohavefordinner.

Yourbrainalsohasitsownnofwhatyoushouldweigh,no

calledyourtpoint,

butthat'samisleadingterm,becauit'sactuallyarangeofabout

ulifestylechoicestomoveyourweight

upanddownwithinthatrange,butit'smuch,muchhardertostay

othalamus,thepartofthebrainthatregulates

bodyweight,therearemorethanadozenchemicalsignalsinthe

brainthattellyourbodytogainweight,morethananotherdozen

thattellyourbodytoloit,andthesystemworkslikeathermostat,

respondingtosignalsfromthebodybyadjustinghunger,activity

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andmetabolism,tokeepyourweightstableasconditionschange.

That'swhatathermostatdoes,right?Itkeepsthetemperaturein

can

trytochangethetemperatureinyourhoubyopeningawindow

inthewinter,butthat'snotgoingtochangethettingonthe

thermostat,whichwillrespondbykickingonthefurnacetowarm

theplacebackup.

Yourbrainworkxactlythesameway,respondingtoweight

lossbyusingpowerfultoolstopushyourbodybacktowhatit

oalotofweight,yourbrainreactsasif

youwerestarving,andwhetheryoustartedoutfatorthin,your

brain'dlovetothinkthat

yourbraincouldtellwhetheryouneedtoloweightornot,butit

can'oloalotofweight,youbecomehungry,andyour

ibelofColumbiaUniversity

hasfoundthatpeoplewhohavelost10percentoftheirbody

weightburn250to400calorieslessbecautheirmetabolismis

'ansthatasuccessfuldieter

musteatthismuchlessforeverthansomeoneofthesameweight

whohasalwaysbeenthin.

Fromanevolutionaryperspective,yourbody'sresistanceto

odwasscarce,ourancestors'

survivaldependedonconrvingenergy,andregainingtheweight

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whenfoodwasavailablewouldhaveprotectedthemagainstthe

ecourofhumanhistory,starvationhas

yexplaina

verysadfact:Setpointscangoup,,if

yourmotherevermentionedthatlifeisnotfair,thisisthekindof

thingshewastalkingabout.(Laughter)Successfuldietingdoesn't

teryou'vekepttheweightoffforas

longasvenyears,yourbrainkeepstryingtomakeyougainit

weightlosshadbeenduetoalongfamine,thatwould

odernworldofdrive-thruburgers,

it'fferencebetween

ourancestralpastandourabundantprentisthereasonthatDr.

YoniFreedhoffoftheUniversityofOttawawouldliketotakesome

ofhispatientsbacktoatimewhenfoodwaslessavailable,andit's

alsothereasonthatchangingthefoodenvironmentisreallygoing

tobethemosteffectivesolutiontoobesity.

Sadly,

stayatahighweightfortoolong,probablyamatterofyearsfor

mostofus,yourbrainmaydecidethatthat'sthenewnormal.

Psychologistsclassifyeatersintotwogroups,thowhorelyon

theirhungerandthowhotrytocontroltheireatingthrough

willpower,'scallthemintuitiveeatersand

erestingthingisthatintuitiveeatersare

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lesslikelytobeoverweight,andtheyspendlesstimethinking

lledeatersaremorevulnerabletoovereatingin

respontoadvertising,super-sizing,andtheall-you-can-eat

allindulgence,likeeatingonescoopoficecream,

en

areespeciallyvulnerabletothiscycleofdietingandthenbinging.

Severallong-termstudieshaveshownthatgirlswhodietin

theirearlyteenageyearsarethreetimesmorelikelytobecome

overweightfiveyearslater,eveniftheystartedatanormalweight,

andallofthestudiesfoundthatthesamefactorsthatpredicted

weightgainalsopredictedthedevelopmentofeatingdisorders.

Theotherfactor,bytheway,thoofyouwhoareparents,was

'tdo

that.(Laughter)

Ileftalmostallmygraphsathome,butIcouldn'tresist

throwinginjustthisone,becauI'mageek,andthat'showIroll.

(Laughter)Thisisastudythatlookedattheriskofdeathovera

14-yearperiodbadonfourhealthyhabits:eatingenoughfruits

andvegetables,exercithreetimesaweek,notsmoking,and

'sstartbylookingatthenormalweight

ghtofthebarsistheriskofdeath,and

thozero,one,two,three,fournumbersonthehorizontalaxisare

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you'dexpect,thehealthierthelifestyle,thelesslikelypeoplewere

'slookatwhathappensin

overweightpeople.

Theonesthathadnohealthyhabitshadahigherriskofdeath.

Addingjustonehealthyhabitpullsoverweightpeoplebackinto

peoplewithnohealthyhabits,therisk

isveryhigh,ventimeshigherthanthehealthiestgroupsinthe

,ifyou

lookonlyatthegroupwithallfourhealthyhabits,youcanethat

takecontrolofyour

healthbytakingcontrolofyourlifestyle,evenIfyoucan'tlo

weightandkeepitoff.

Dietsdon'arsafteradiet,

ercentofthemhave

hinkaboutthis,thetypicaloutcomeof

dietingisthatyou'remorelikelytogainweightinthelongrunthan

toloit.

IfI'veconvincedyouthatdietingmightbeaproblem,thenext

questionis,whatdoyoudoaboutit?Andmyanswer,inaword,is

mindfulness.I'mnotsayingyouneedtolearntomeditateortake

upyoga.I'mtalkingaboutmindfuleating:learningtounderstand

yourbody'ssignalssothatyoueatwhenyou'rehungryandstop

whenyou'refull,becaualotofweightgainboilsdowntoeating

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whenyou'oudoit?Giveyourlf

permissiontoeatasmuchasyouwant,andthenworkonfiguring

ntoregularmeals

bouthowyourbodyfeelswhenyou

starttoeatandwhenyoustop,andletyourhungerdecidewhen

aboutayearformetolearnthis,but

it'uchmorerelaxedaroundfood

don't

'slikealienshavetakenovermy

'dsaythatthisapproach

toeatingprobablywon'tmakeyouloweightunlessyouofteneat

whenyou'renothungry,butdoctorsdon'tknowofanyapproach

thatmakessignificantweightlossinalotofpeople,andthatiswhy

alotofpeoplearenowfocusingonpreventingweightgaininstead

'sfaceit:Ifdietsworked,we'dallbe

thinalready.(Laughter)

Whydowekeepdoingthesamethingandexpectingdifferent

results?Dietsmayemharmless,buttheyactuallydoalotof

t,theyruinlives:Weightobssionleads

toeatingdisorders,.S.,wehave80

percentof10-year-oldgirlssaythey'

daughtershavelearnedtomeasuretheirworthbythewrongscale.

Evenatitsbest,s

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willpowerwhichyoucouldbeusingtohelpyourkidswiththeir

homeworkortofinishthatimportantworkproject,andbecau

willpowerislimited,anystrategythatreliesonitsconsistent

applicationisprettymuchguaranteedtoeventuallyfailyouwhen

yourattentionmovesontosomethingel.

wetoldall

thodietinggirlsthatit'sokaytoeatwhenthey'rehungry?Whatif

wetaughtthemtoworkwiththeirappetiteinsteadoffearingit?I

thinkmostofthemwouldbehappierandhealthier,andasadults,

omeonehadtold

methatbackwhenIwas13.

Thanks.

(Applau