iF you FEEl tirED All thE timE, you Don’t nECEssArily nEED to go to BED EArliEr. thE solution CoulD BE As simplE As tAking A FivE-minutE AFtErnoon nAp.ChilDrEn unDEr FivE hAvE An ABunDAnCE oF EnErgy AnD onE oF thE rEAsons is BECAusE thEy nAp onCE or twiCE A DAy.. mAny slEEp ExpErts think wE ArE progrAmmED to tAkE A nAp During thE DAy, AnD gEtting BACk into this hABit CAn BE A solution For thosE who FEEl tirED All thE timE. proFEssorCrissEzEkosky oF thE slEEpADvisory AnDAssEssmEntCEntEr thinks thAt onE CAn FEEl rEFrEshED AFtEr just FivE minutEs’ slEEp AnD rEsEArCh hAs shown thAt ConCEntrAtion AnD AttEntion ArE improvED AFtEr EvEn A short nAp.’ slEEp is gEnEtiCAlly progrAmmED in BABiEs AnD it’s only As wE gEt olDEr thAt wE lEArn to slEEp ABout 8 hours At night AnD not At All During thE DAy.But most rEsEArCh suggEsts thAt wE ArC not physiCAlly DEsignED to slEEp For onE long singlE BloCk.BEForE thE working DAy BECAmE 9~00 to 5:00, All wEstErn slEEp pAttErns wErE All BrokEn up. rEsEArCh hAs shown thAt in thE miDDlEAgEs pEoplE’s slEEp quitE oFtEn oCCurrED in 3 DistinCt pArts.
A、nAp in thE AFtErnoon, An EArly EvEning nAp AnD AnothEr longEr slEEp until DAwn. so iF you Do FinD yoursElF FEEling slEEpy through thE DAy, Don’t FEEl your BEing lAzy By giving in to slEEp AnD hAving A nAp. your inCrEAsED EnErgy AnD AlErtnEss will mAkE thE rEst oF your DAy ExtrA proDuCtivE.
ChilDrEn unDEr FivE hAvE ABunDAnt EnErgy pArtly BECAusE thEy ______.
A、slEEp !n thrEE DistinCt pArts.
B、hAvE mAny FivE-minutE nAps.
C．slEEp in onE long BloCk.
D．tAkE onE or two nAps DAily.