Theaveragehumanspends1/3ofhisorherlifetimesleeping.Imaginehowmuchpeoplecouldaccomplishiftheyspentlesstimesleeping.Formanyhighschoolstudentsgettingenoughrestisnotapriority(优先).ANationalSleepFoundatio

　　Theaveragehumanspends1/3ofhisorherlifetimesleeping.Imaginehowmuchpeoplecouldaccomplishiftheyspentlesstimesleeping.Formanyhighschoolstudentsgettingenoughrestisnotapriority(优先).ANationalSleepFoundationsurveyshowsthatteensarestayinguptoolateatnightusuallygetting7hoursofsleepinsteadoftherecommended9hours.Althoughteenagers'internalclocks(生物钟)arepartiallytoblamefornotsleepingearliermanystudentslosesleepbecauseofschool.

　　Schoolsshouldallowstudentsenoughtimeforsleeptakingjobssportsandotherextracurricularactivitiesintoconsideration.

　　Studentswhoareextremelybusyandlosesleepasaresultshouldnothavetodroptheiractivitiesinordertogetmorerest.Withcollegesbecomingincreasinglycompetitiveitisunreasonableforstudentstobeforcedtochoosebetweensleepingandexcelling.

　　Inadditiontointerferingwithacademicsuccesslackofsleepalsoaffectsaperson'ssafety.Almost1/2ofthe100000annualsleep-relatedcaraccidentsintheU.S.involvepeoplebetweentheagesof15and24.

　　Thereareanumberofsolutionsthathighschoolscanchoosefrom.Oneoptionisstartingschoolatalatertime.Alaterscheduleismoreappropriateforteenagers'biologicalclocks.Althoughitmaycreatemoreexpensesfortheschoolthechangewouldbewellworthit.Researchhasshownthatstudentswhogetmoresleeparehappierhealthiermoreproductiveandearnhighergradesthanthosewhosufferfromsleepdeprivation免职撤职;废止.Studentswhogetenoughsleeparealsomoreattentiveandlesslikelytofallasleepinclass.

　　Asecondoptionisofferingstudyhallasanelective选修课程.Sincethisgivesstudentstimetodohomeworkortakeanapitcreatesmorefreetimeafterschool.

　　Athirdalternative可供选择的办法isforsometeacherstoalter(改变)theirteachingmethodsabitbygivingonlyimportantnecessaryhomework.Quiteafewteachersassignbusyworkwhichdoesn'tteachstudentsmuchbutinsteadwastestheirtime.Itisalsohelpfulifteacherscommunicatewitheachothertoplanouttheirtestschedules.

　　Highschoolsshouldnotnegativelyinterferewiththeamountofsleepteenagersget.Insteadschoolsshouldtakestepstobenefitthelivesofstudentsbyallowingthemenoughti