A Complete Collection of 100000 Whys
Fav十万个为什么
为什么吃辣会流鼻涕？
简单的摘要：吃辣会流鼻涕的原因主要是辣椒素刺激鼻腔神经末梢、鼻黏膜分泌黏液增加以及身体试图清除刺激物。
1、辣椒素刺激鼻腔神经末梢：辣椒中的辣椒素是一种刺激性生物碱，会刺激鼻腔和口腔相接处的感觉神经末梢，导致神经兴奋。
2、鼻黏膜分泌黏液增加：辣椒素刺激使鼻黏膜分泌黏液增加，这种黏液就是鼻涕，用以稀释和清除刺激物。
3、身体试图清除刺激物：辣椒素通过口腔与鼻腔的连接处进入鼻腔，身体为了清除这种刺激物，会促使鼻黏膜分泌更多黏液，从而形成流鼻涕的现象。
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