文登考研英语钻石卡VIP外报阅读Word格式.docx
- 文档编号:5797081
- 上传时间:2023-05-05
- 格式:DOCX
- 页数:12
- 大小:25.29KB
文登考研英语钻石卡VIP外报阅读Word格式.docx
《文登考研英语钻石卡VIP外报阅读Word格式.docx》由会员分享,可在线阅读,更多相关《文登考研英语钻石卡VIP外报阅读Word格式.docx(12页珍藏版)》请在冰点文库上搜索。
Posted:
March14,2011
Thousandsofpeoplearelatchingontoadietthatpromisesrapidweightloss—upto30poundsamonth—and,judgingbyitsrecentsurgeinpopularity,actuallydelivers.Buttheso-calledhCGdietiseitheraweight-lossmiracleoradangerousfraud,dependingonwho'
stalking.TheplancombinesdropsorinjectionsofhCG,apregnancyhormone,withjust500caloriesaday.Whilesomebelieversaresoconvincedofitspowerthey'
llwillinglystickthemselveswithasyringe,thegovernmentandmainstreammedicalcommunitysayit'
sascamthatcarriestoomanyhealthrisksanddoesn'
tleadtolong-termweightloss.
"
sreckless,irresponsible,andcompletelyirrational,"
saysPieterCohen,anassistantprofessorofmedicineatHarvardMedicalSchool."
Canyouloseweightonit?
Ofcourse,butthat'
smainlybecauseyou'
rehardlyconsuminganycalories.Andanybenefitisnotgoingtolast."
HCGisapprovedbytheU.S.FoodandDrugAdministrationtotreatinfertilityinbothmenandwomen.Butitsweight-lossrootstracebacktothe1950s,whenBritishendocrinologistA.T.W.Simeonsrealizedthatgivingobesepatientssmall,regulardosesofthehormonehelpedthemlosestubbornclumpsoffat.Itonlyworked,however,whencoupledwithanear-starvationdiet.SimeonsbegantoutinghCGasapotentappetitesuppressantthatwouldmakeanythingmorethan500dailycaloriesunbearable.Andheclaimedthehormonecouldblastfatinkeytroublespotsliketheupperarms,stomach,thighs,andbuttocks,whilepreservingmuscle.Saveforafewtweaks,themodern-dayincarnationislargelyasSimeonspresentedit:
Dieterssupplementanextremelylow-caloriemealplanwithdailyinjectionsprescribedoff-labelbymedicalprofessionals,ortakediluted,homeopathichCG—typicallyindropform—soldonline,indrugstores,andatnutritionalsupplementstores.
ExactlywhythehCGdietisexperiencingarevivalnowisunclear,butthehypehassparkedaresponsefromtheFDA.InJanuary,theagencywarnedthathomeopathichCGisfraudulentandillegalwhensoldforweight-losspurposes.ThoughtheFDAsaidsuchproductsaren'
tnecessarilydangerous,theirsaleisdeceptive,sincethere'
snogoodevidencethey'
reeffectiveforweightloss.What'
smore,allhCGproducts,includinginjectionsprescribedbyadoctor,mustcarryawarningstatingthere'
snoprooftheyaccelerateweightloss,redistributefat,ornumbthehungeranddiscomforttypicalofalow-caloriediet.
Nonetheless,doctorsarestilldolingoutprescriptionsforthedailyinjections,typicallyinsertedintothethigh.AtNewBeginningsWeightLossClinicinFlorida,forexample,anin-housephysicianhasprescribedinjectionsto3,000clientssince2008,andclinicaldirectorJoLynnHansenhasrecentlyobservedamarkedjumpininterest.There,clientscanoptforeithera23-dayplan($495)ora40-dayregimen($595).Aftertakingasixweekbreakandeatingnormally—topreventthebodyfrombecoming"
hCG-immune"
—manyresumetheprocess,completingmultiplecycles."
Wehavepeopleflyinginfromalloverthecountry,"
Hansensays."
sjustatinylittleneedlethatprickstheskin.Anyonecandoit."
ThoughhCGdietershavesomeleewayinhowtheyspendtheir500dailycalories,they'
reurgedtochooseorganicmeats,vegetables,andfish.Dairy,carbs,alcohol,andsugarareallofflimits.Aday'
smealsmightconsistofcoffeeandanorangeforbreakfast;
alittletilapiaandrawasparagusforlunch;
apieceoffruitintheafternoon;
andcrab,spinach,Melbatoast,andteafordinner.Ifdietersslipup,they'
reencouragedtocompensatebydrinkingonlywaterandeatingnothingbutsixapplesfor24hours.That'
sthoughttohelpsqueezeoutwaterweight,apsychologicalboosttohelpthemgetbackontrack.
Itwasn'
tthathardtopulloff,andI'
ddoitagaininaheartbeat,"
ravedLondon-basedfashionstylistAlisonEdmondinFebruary'
sMarieClaire."
Intheend,Ilostatotalof25pounds,endingupataweightIhadn'
tbeenin10years."
Despitesuccessstorieslikehers,scientificevidenceontheplanisshakyatbest.In1995,researchersanalyzed14clinicaltrialsonthehCGdiet.OnlytwoconcludedhCGwasanymoreeffectivethanaplaceboathelpingpeopleloseweight.Andnearly10yearsearlier,areportintheCanadianMedicalAssociationJournalstatedhCGhas"
novalue"
asameansofmanagingobesity,andthatthediethasbeen"
thoroughlydiscreditedandthusrejectedbythemajorityofthemedicalcommunity."
Detractorssaythehormoneisn'
tsomemiracleingredienttoweightloss—therestrictivedietis."
Ifyoudon'
teat,youloseweight,"
Cohensays."
IfhCGtrulydiminishedhunger,itwouldbeawonderfuldrug.Butifthatwerethecase,whycouldn'
tyoujustmodestlyreduceyourintakewhileusingit?
Whywouldyouhavetosimultaneouslystarveyourself?
Butbelieversinsistthat,thankstohCG,theycansticktoalow-caloriedietwithouthungerpangs,whilelosingunwantedfat.They'
readamantthathCGisessentialtothediet'
ssuccess."
Peoplearestronglyconvincedthatthishormonewillkeepthemona500-caloriediet.Andthepowerofsuggestioncanbeaverystrongforce,"
saysCohen.
Ofcourse,theregimenisn'
twithoutrisks.Thehormoneisknowntocauseheadaches,bloodclots,legcramps,temporaryhairthinning,constipation,andbreasttenderness.TheFDAhasreceivedatleastonerecentreportofanHCGdieterdevelopingapulmonaryembolism,apotentiallyfatalbloodclotinthelung,saysagencyspokespersonShellyBurgess.Yet,thehormone'
sfullriskprofileisunknown."
HCGwasstudiedbriefly[forweightloss]andfoundtobeineffective,sowehavenoideawhatitspotentialrisksare,"
DoIhavedatathatitcausesheartattacks,stroke,orcancer?
No,Idon'
t,becausewejustdon'
tknowatthispoint."
WhilehCGmaybesafeonitsown—theFDAsaysit'
ssafeasaninfertilitytreatment—pairingitwithanextremelylow-caloriedietcouldhaveunexpectedsideeffects.
Twoyearsago,LoriHill,40,ofSaltLakeCity,Utah,begana28-dayhCGdietcycle.Shesaysshelostabout26pounds,includingthighfat,largelywithouthunger.Butshefeltillalmostimmediately,andbythelastweekofthediet,Hill—afitandactivesoccerreferee—couldn'
tclimbaflightofstairswithoutgaspingforbreath.Theeffortmadehermusclesburnandshake,too.Aftercompletingthecycle,Hillregainedalltheweightshehadlost,plusanadditional15pounds."
Istarvedmyselfandthrewallmynutrientsoutofwhack,"
shesays."
You'
retrickingyourbodyintolettingyoustarve,withoutfeelinganymajorhunger.Whatyou'
redoingtoyourbodyjustisn'
tworthit."
There'
snoquestionthat500caloriesadayistantamounttomalnutrition—dietersshouldneverdipbelow1,200,sayexperts—andfederaldietaryguidelinesrecommendmorethanthreetimestheamountofcaloriesthedietprescribesforwomenages19to30.Moreover,extremelylow-caloriedietscancausesevereboneandmuscleloss,electrolyteimbalances,gallstones,andevendeath."
I'
veheardalotofpeoplesaythesideeffectsofthisdietareoverwhelming,"
saysregistereddietitianKeriGans,aspokespersonfortheAmericanDieteticAssociation."
Andtheycouldstartassoonasonedayin—you'
llstartfeelingirritatedandtired."
ToGans,theregimenisnothingmorethanacrashdiet—andanexpensiveoneatthat.Amoresensibleroutetoweightloss,shesays,isnomoremysteriousthanchoosinghealthyfoods,limitingportionsizes,andexercising."
Thisisanotherapproachforpeoplewhobelievethere'
sasilverbullet,butthereisnosuchthing.Allthisdietdoesisshowyouhowtorestrict,andapersoncanonlydothatforsolongwithoutreturningtooldhabits."
Passage2:
DoesDrinkingWaterBeforeMealsHelpYouLoseWeight?
Twoglassesbeforemealsmayhelpyoushedpoundspermanently
ByHannaDubansky
Drinkingtwo8-ounceglassesofwaterbeforebreakfast,lunch,anddinnermaybejustthebackstopyourwillpowerneedstohelpyoushedpoundspermanentlyin2011,accordingtoarecentstudypublishedinObesity.Researchersinstructedtwogroupsofoverweightorobesemenandwomentofollowalow-caloriediet,askingonegrouptoalsodrinktwocupsofwaterbeforemeals.After12weeks,thewaterdrinkershadlostanaverageof15½
pounds,comparedwith11poundsforthecontrolgroup.Thosewhocontinuedthehabitforayearlostanadditional1½
poundsonaverage."
Iwouldneverpromotethisasaget-slim-quickscheme,"
saysseniorstudyauthorBrendaDavy,anassociateprofessorinthedepartmentofhumannutrition,foods,andexerciseatVirginiaTechUniversity,whonotesthatthepracticeslowstheemptyingofthestomach."
Thisissimplyanadditionalstrategythatcouldhelppeoplemanagetheirhunger."
Thestudyexaminedtheeffectonlyonmiddle-ageandolderadults,butLiweiChen,anassistantprofessorofepidemiologyatLouisianaStateUniversityHealthScienceCenterSchoolofPublicHealth,thinksit'
sasmartstrategyforeverybody,particularlyifitcausesthemtocutbackonsoda.Americanadultsaverage28ouncesofsugar-sweetenedbeveragesperday,saysChen,wholedastudypublishedinMaythatfoundevenasmallreductioninsugarintakesignificantlyloweredbloodpressure."
Aimtoavoidsugar-sweetenedbeveragesaltogether,"
sheadvises.Thatway,youbattletworiskfactorsatonce.
Passage3:
TVWatchingIsBadforBabies'
Brains
ByNancyShute
BabieswhowatchTVaremorelikelytohavedelayedcognitivedevelopmentandlanguage
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 文登 考研 英语 钻石 VIP 阅读