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1、j Ei B/ IELTS ADVANTAGESentenceCompletionPracticeQuestionsCompletethesentencesbelow.WriteNOMORETHAN2WORDSforeachanswer.1. Apersonscircadianrhythmdeterminestheirduringthecourseofaday.2. Comparedtothe1940s,theaverageAmericanisnowtypicallygettinganentiresleep.3. Somepeopleareproudofnotgettingenoughslee
2、pandconsideritabadgeof.4. Alackofsleephasbeentoavarietyofdiseases.5. The3stagesofsleeparereferredtoas,REM,anddeepsleep.6. Whenpeopledontgetampleamountsofdeepsleep,itcanhurttheirabilitytolearnandtheirbodiesanditscellsto.7. Alaboratoryinhasproventhatcertainsoundsbeingplayedattherightmomentsduringdeeps
3、leepcanmakepeoplesleepmoredeeplyandefficiently.8. Whenplayedduringdeepsleep,thesesoundscausepeople,smindstoproducemoreregenerative.9. Thisoccurreddespitethefactthatparticipantsinthestudywerecompletelythatanysoundshadbeenplayedduringtheirsleep.10. Researcherseventuallydiscoveredthatitwaspossibletoacc
4、uratelywithnoneedtohookpeopleuptoelectrodesandmakethemsleepmoredeeply.IELTSADVANTAGESentenceCompletionPracticeQuestionsAnswerKey:1. energylevel2. hourless3. honor4. linked5. lightsleep6. recover7. Germany8. deltawaves9. unaware10. tracksleepLinktovideotutorial:https:Shale.oetcloudaDP.com2NuXYGovTran
5、SCriPtSOUrCe:https:WWWWhatifyoucouldmakeyoursleepmoreefficient?Asasleepscientist,thisisthequestionthathascaptivatedmeforthepast10years.Becausewhilethelightbulbandtechnologyhavebroughtaboutaworldof24-hourworkandproductivity,ithascomeatthecostofournaturallyoccurringcircadianrhythmandourbodysneedforsle
6、ep.Thecircadianrhythmdictatesourenergylevelthroughouttheday,andonlyrecentlywevebeenconductingaglobalexperimentonthisrhythm,whichisputtingoursleephealthandultimatelyourlifequalityinjeopardy.Becauseofthis,wearentgettingthesleepweneed,withtheaverageAmericansleepingawholehourlessthantheydidinthe1940s.Fo
7、rsomereason,wedecidedtowearitasabadgeofhonorthatwecangetbyonnotenoughsleep.Thisalladdsuptoarealhealthcrisis.MostofusknowthatpoorsleepislinkedtodiseaseslikeAlzheimers,cardiovasculardisease,strokeanddiabetes.Andifyougountreatedwithasleepdisorderlikesleepapnea,youremorelikelytogetmanyofthese川nesses.But
8、didyouknowaboutsleepsimpactonyourmentalstates?Poorsleepmakesusmakerisky,rashdecisionsandisadrainonourcapacityforempathy.Whensleepdeprivationliterallymakesusmoresensitivetoourownpain,itsnotsosurprisingthatwehaveahardtimerelatingtoothersandjustgenerallybeingagoodandhealthypersonwhenwe,resleep-deprived
9、.Scientistsarenowstartingtounderstandhownotonlythequantitybutalsothequalityofsleepimpactsourhealthandwell-being.Myresearchfocusesonwhatmanyscientistsbelieveisthemostregenerativestageofsleep:deepsleep.Wenowknowthatgenerallyspeaking,therearethreestagesofsleep:lightsleep,rapideyemovementorREManddeepsle
10、ep.Wemeasurethesestagesbyconnectingelectrodestothescalp,chinandchest.InIELTSADVANTAGESentenceCompletionPracticeQuestionslightsleepandREM,ourbrainwavesareverysimilartoourbrainwavesinwakinglife.Butourbrainwavesindeepsleephavetheselong-burstbrainwavesthatareverydifferentfromourwakinglifebrainwaves.Thes
11、elong-burstbrainwavesarecalleddeltawaves.Whenwedontgetthedeepsleepweneed,itinhibitsourabilitytolearnandforourcellsandbodiestorecover.Deepsleepishowweconvertallthoseinteractionsthatwemakeduringthedayintoourlong-termmemoryandpersonalities.Aswegetolder,weremorelikelytolosetheseregenerativedeltawaves.So
12、,inaway,deepsleepanddeltawavesareactuallyamarkerforbiologicalyouth.Sonaturally,IwantedtogetmoredeepsleepformyselfandIliterallytriedalmosteverygadget,gizmo,deviceandhackoutthere-consumer-grade,clinical-grade,whathaveyou.Ilearnedalot,andIfoundIreallydoneed,likemostpeople,eighthoursofsleep.Ievenshifted
13、mycircadiancomponentbychangingmymeals,exerciseandlightexposure,butIstillcouldntfindawaytogetadeepernightofsleep.thatisuntilImetDr.DmitryGerashchenkofromHarvardMedicalSchool.Dmitrytoldmeaboutanewfindingintheliterature,wherealaboutofGermanyshowedthatifyoucouldplaycertainsoundsattherighttimeinpeoplessl
14、eep,youcouldactuallymakesleepdeeperandmoreefficient.Andwhatsmore,isthatthislabshowedthatyouactuallycouldimprovenext-daymemoryperformancewiththissound.DmitryandIteamedup,andwebeganworkingonawaytobuildthistechnology.WithourresearchlabcollaboratorsatPennState,wedesignedexperimentsinordertovalidateoursy
15、stem.AndwevesincereceivedgrantfundingfromtheNationalScienceFoundationandtheNationalInstituteofHealthtodevelopthisdeep-sleepstimulatingtechnology.Hereshowitworks.Peoplecameintothelabandwehookedthemuptoanumberofdevices,twoofwhichIhaveonrighthere-notafashionstatement.Whenwedetectedthatpeoplewereindeeps
16、leep,weplayedthedeep-sleepstimulatingsoundsthatwereshowntomakethemhavedeepersleep.mgoingtodemothissoundforyourightnow.(Repeatingsoundwaves)Prettyweird,right?Sothatsoundisactuallyatthesameburstfrequencyasyourbrainwaveswhenyourbrainisindeepsleep.Thatsoundpatternactuallyprimesyourmindtohavemoreoftheser
17、egenerativedeltawaves.Whenweaskedparticipantsthenextdayaboutthesounds,theywerecompletelyunawarethatweplayedthesounds,yettheirbrainsrespondedwithmoreofthesedeltawaves.Heresanimageofsomeonesbrainwavesfromthestudythatweconducted.Seethebottompanel?Thisshowsthesoundbeingplayedatthatburstfrequency.Nowlook
18、atthebrainwavesintheupperpartofthegraph.Youcanseefromthegraphthatthesoundisactuallyproducingmoreoftheseregenerativedeltawaves.Welearnedthatwecouldaccuratelytracksleepwithouthookingpeopleuptoelectrodesandmakepeoplesleepdeeper.We,recontinuingtodeveloptherightsoundenvironmentandsleephabitattoimprovepeoplessleephealth.j Ei B/ IELTS ADVANTAGESentenceCompletionPracticeQuestionsOursleepisntasregenerativeasitcouldbe,butmaybeonedaysoon,wecouldwearasmalldeviceandgetmoreoutofoursleep.Thankyou.
