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胃有“三怕” 冬天吃饭更得慢点
发布时间：2010-11-26      来源：
    冬天吃饭更得慢点

    冬天本来是养胃的好季节，但不少人的肠胃健康却亮起了红灯。

    在人体所有器官中，胃是最娇气的器官之一，除了饮食，情绪、气候、睡眠等多方面的因素，都会让它抗议、罢工。哈尔滨医科大学附属第四医院消化内二科主任李滨教授说，在寒冷的冬天，胃会变得更加敏感。人体受到冷空气刺激后，胃部容易发生痉挛性收缩，从而引发胃疼、胃胀、腹泻等不适。此时，不少人误认为赶紧用热汤、热饭暖一暖胃，就会舒服很多。但实际上，在天冷的情况下，马上吃东西，或吃得太快，都会使肠胃负担加重，轻则引起食欲不振，严重的还会导致急性胃炎、胃痉挛等。“近日，来消化科就诊的病人中，很大一部分都是这个原因导致的。”李滨说。

    对此，李滨建议大家，吃饭的速度一定要慢，尤其在寒冷的冬天。如果刚从外面回来，不要马上吃饭，可以先喝点温水，过10—15分钟后再进餐；每顿饭的进食时间至少在25分钟以上，一定要放慢速度，增加咀嚼时间，老年人建议一口饭嚼20次以上为宜；吃饭时最好和家人、朋友在一起，可以改变吃饭太快的习惯；冬天吃饭，最好先吃点主食，再吃菜肉、喝汤，这样有利于刺激唾液分泌淀粉酶，增强胃的消化能力，还能保护肠胃。

    胃有“三怕”

    除了温度和吃饭速度，香港“大公网”特别刊文提醒，胃还有“三怕”。

    一怕不守时。胃是一个严格遵守“时间表”的器官，一天中胃液的分泌有高峰期和低谷期，到了饭点还没吃饭，不但影响胃的消化功能，还会对胃黏膜造成损害。

    二怕晚餐过饱。晚饭吃太饱或睡前吃东西，会让胃处于超负荷的紧张工作中，胃液分泌过量，腐蚀胃黏膜，长期如此，会导致胃溃疡等疾病。

    三怕饮食不洁。幽门螺杆菌是许多慢性胃病发生、发展中的一种重要致病因子，大多是由于饮食不洁，相互传染所致。

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