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學習快評丨qibao666888　　許??(xu)多??(duo)人?(ren)誤??(wu)以??(yi)為??(wei)“免??(mian)疫??(yi)力??(li)越??(yue)強??(qiang)越??(yue)好祝(hao)”??，盲??(mang)目??(mu)服??(fu)用??(yong)補??(bu)品??(pin)、濫??(lan)用??(yong)保?(bao)健??(jian)品??(pin)??，結??(jie)果??(guo)反?(fan)而??(er)引??(yin)發(fā)??(fa)過??(guo)敏?(min)、自??(zi)身??(shen)免??(mian)疫??(yi)病??(bing)等??(deng)問??(wen)題??(ti)??。??事??(shi)實??(shi)上??(shang)??，免??(mian)疫?(yi)系??(xi)統(tǒng)??(tong)的??(de)精??(jing)髓??(sui)在??(zai)于??(yu)“動??(dong)態(tài)??(tai)平??(ping)衡??(heng)”——既??(ji)能??(neng)高??(gao)效?(xiao)防??(fang)御??(yu)??，又??(you)不?(bu)失?(shi)控??(kong)攻??(gong)擊??(ji)自??(zi)身??(shen)??。這??(zhe)種??(zhong)平??(ping)衡??(heng)一??(yi)旦??(dan)被??(bei)打??(da)破?(po)??，就??(jiu)像??(xiang)過??(guo)度??(du)緊??(jin)繃??(beng)的??(de)琴??(qin)弦??(xian)??，稍??(shao)有?(you)不??(bu)慎??(shen)便??(bian)會??(hui)走??(zou)音??(yin)或?(huo)斷??(duan)弦??(xian)??。　　兒??(er)童??(tong)至??(zhi)青??(qing)少??(shao)年??(nian)期??(qi)(4～18歲??(sui))??，隨??(sui)著??(zhe)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)逐??(zhu)漸??(jian)成??(cheng)熟??(shu)??，適??(shi)應??(ying)性??(xing)免??(mian)疫??(yi)(T細??(xi)胞??(bao)、B細??(xi)胞??(bao))開??(kai)始??(shi)發(fā)??(fa)揮??(hui)主??(zhu)力??(li)作??(zuo)用??(yong)??，能??(neng)針??(zhen)對??(dui)病??(bing)原??(yuan)體??(ti)產??(chan)生??(sheng)特??(te)異??(yi)性??(xing)抗??(kang)體??(ti)??。??但??(dan)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)也??(ye)可?(ke)能??(neng)因??(yin)“經??(jing)驗??(yan)不??(bu)足?(zu)”而??(er)反??(fan)應??(ying)過??(guo)度??(du)??，如??(ru)對??(dui)花??(hua)粉?(fen)、食?(shi)物??(wu)等??(deng)無??(wu)害??(hai)物??(wu)質??(zhi)過??(guo)度??(du)反??(fan)應??(ying)??，引??(yin)發(fā)??(fa)哮?(xiao)喘??(chuan)、濕??(shi)疹?(zhen)；如??(ru)接?(jie)觸??(chu)外??(wai)界??(jie)增??(zeng)多??(duo)??，易??(yi)感??(gan)染??(ran)手?(shou)足??(zu)口??(kou)病??(bing)、水??(shui)痘??(dou)等??(deng)傳??(chuan)染??(ran)病??(bing)??。。