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　　閱??(yue)讀??(du)提??(ti)示??(shi)　　從??(cong)遺??(yi)傳??(chuan)與??(yu)生??(sheng)理??(li)基??(ji)礎(chǔ)??(chu)看??(kan)?，某??(mou)些?(xie)基??(ji)因??(yin)?，如??(ru)DEC2、CLOCK基??(ji)因??(yin)的??(de)突??(tu)變??(bian)?，可??(ke)能??(neng)導?(dao)致??(zhi)睡?(shui)眠??(mian)時??(shi)間??(jian)較??(jiao)短?(duan)或??(huo)睡??(shui)眠??(mian)周??(zhou)期??(qi)紊??(wen)亂??(luan)；大??(da)腦??(nao)內(nèi)??(nei)血??(xue)清??(qing)素??(su)、GABA等??(deng)神?(shen)經(jīng)??(jing)遞??(di)質(zhì)??(zhi)失??(shi)衡??(heng)?，也?(ye)會??(hui)影??(ying)響??(xiang)睡??(shui)眠?(mian)的??(de)啟??(qi)動??(dong)和??(he)維??(wei)持?(chi)??。??。