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常喝茶、咖啡有助于防癌,但茶超过1杯,竟与癌症风险增加有关
对于饮茶和喉癌风险增加有关,研究人员表示,一个潜在机制是胃食管反流病介导,茶碱是茶中的一种生物活性化合物,它可以降低下食管括约肌压力,并能诱发酸通量和胃食管反流。
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