• 2022-06-06
    Practice1
    Areyouarealgrump(脾气坏的人)inthemornings?Doyouwakeupeverydayfeelingtired,angryandupset,andalltooreadytoflitthesnooze(瞌睡)button?Ifso,thenanewalarmclockcouldbejustforyou.
    Theclock,calledSleepSmart,measuresyoursleepcycle,andwaitsforyoutobeinyourlightestphaseofsleepbeforewakingyouup,Itsmakerssaythatshouldensureyouwakeupfeelingrefreshed(恢复精力)everymorning.
    Asyousleepyoupassthroughasequenceofsleepstates—lightsleep,deepsleepandREMsleep(快速眼动睡眼)—thatrepeatsapproximatelyevery90minutes.Thepointsinthatcycleatwhichyouwakecanaffecthowyoufeellater,andmayevenhaveagreaterimpactthanhowlongorlittleyouhaveslept.Beingwakenedduringalightphasemeansyouaremorelikelytowakeupcheerfulandfulloflifeandinterest.
    SleepSmartrecordsthedistinctpatternofbrainwavesproducedduringeachphaseofsleep,viaaheadbandequippedwithelectrodes(电极)andamicroprocessor.Thismeasureselectricactivityofthewearer’sbrain,andcommunicateswirelesslywithaclockunitnearthebed.Youprogramtheclockwiththelatesttimeatwhichyouwanttobewakened,anditthenatthepropertimewakesyouduringthelastlightsleepphasebeforethat.
    TheconceptwasinventedbyagroupofstudentsatBrownUniversityinRhodeIslandafterafriendcomplainedofwakinguptiredandperformingpoorlyonatest.“Assleep-deprived(剥夺)peopleourselves,westartedthinkingofwhattodoaboutit,”saysEricShashoua,arecentcollegegraduateandnowchiefexecutiveofficerofAxonSleepResearchLaboratories,acompanycreatedbythestudentstodeveloptheiridea.Theyhavealmostfinishedaprototypeandplantomarkettheproductbynextyear.
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