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　　人??(ren)體??(ti)由??(you)兩??(liang)支??(zhi)精??(jing)銳??(rui)部??(bu)隊(duì)??(dui)——先??(xian)天??(tian)性??(xing)免??(mian)疫??(yi)和??(he)適??(shi)應(yīng)??(ying)性??(xing)免??(mian)疫??(yi)組??(zu)成??(cheng)??。??它??(ta)們?(men)分??(fen)工?(gong)明??(ming)確??(que)、協(xié)??(xie)同??(tong)作??(zuo)戰(zhàn)??(zhan)??，既?(ji)能??(neng)抵??(di)御??(yu)外??(wai)敵??(di)入??(ru)侵??(qin)??，又??(you)能??(neng)清??(qing)理??(li)內(nèi)??(nei)部??(bu)隱??(yin)患??(huan)???！　〕??(cheng)年??(nian)期??(qi)是??(shi)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)的?(de)“黃??(huang)金??(jin)時(shí)??(shi)代??(dai)”?，功??(gong)能??(neng)趨??(qu)于??(yu)穩(wěn)??(wen)定?(ding)?，但??(dan)不??(bu)良?(liang)生??(sheng)活??(huo)習(xí)??(xi)慣??(guan)可??(ke)能??(neng)引??(yin)發(fā)??(fa)“隱??(yin)形??(xing)危??(wei)機(jī)??(ji)”??。??這??(zhe)一?(yi)時(shí)??(shi)期??(qi)的??(de)免??(mian)疫??(yi)特??(te)點(diǎn)??(dian)主??(zhu)要??(yao)是??(shi)兩?(liang)個(gè)??(ge)方??(fang)面??(mian)?，一??(yi)是??(shi)胸??(xiong)腺??(xian)萎??(wei)縮??(suo)?，新??(xin)生??(sheng)T細(xì)??(xi)胞??(bao)減??(jian)少??(shao)?，依??(yi)賴??(lai)記??(ji)憶??(yi)T細(xì)??(xi)胞?(bao)應(yīng)??(ying)對??(dui)病??(bing)原??(yuan)體?(ti)；二??(er)是??(shi)慢??(man)性??(xing)炎??(yan)癥?(zheng)?，吸?(xi)煙?(yan)、肥??(fei)胖??(pang)、壓??(ya)力??(li)等??(deng)導(dǎo)??(dao)致??(zhi)低??(di)度??(du)炎??(yan)癥??(zheng)?，增??(zeng)加??(jia)糖??(tang)尿?(niao)病??(bing)、心??(xin)血??(xue)管??(guan)疾??(ji)病??(bing)風(fēng)?(feng)險(xiǎn)??(xian)??。。