上厕所爱玩手机的同学
一定体验过这种人间酷刑
——蹲坑麻
这种麻,痛中带点酸爽
就像有无数的针咔咔地扎着小腿
腿上布满了雪花点
麻得你不知所措
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而且往往能在起身的那一瞬间
到达麻的高潮
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无论是坐厕还是蹲厕
时间久了就会腿麻
这到底是怎么回事呢
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蹲久了为啥会腿麻?
人体之所以有感觉
是因为神经系统能将信息传递到大脑
而「麻」其实是一种感觉异常(Paresthesia)
蹲坑蹲久了
或长时间保持一个姿势
腿部血管和神经就会受到压迫
进入缺血缺氧的状态
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此时
腿部神经系统处于罢工模式
无法传递信号给大脑
而大脑接受不到信号
自然就无法感受到腿部的知觉
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等你起身后
血流畅通,神经得到舒展
被切断的神经信号也会恢复正常
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但由于神经被压迫时
积压的信息太多
恢复后一下子全都发送给大脑
会让其不知所措
于是就产生「麻」的感觉
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此外,不少人应该感受过
腿麻时被触碰的感觉
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这种一碰就宕机的感觉
是因腿麻时神经末梢过度紧张
给表皮神经的敏感度造成了影响
所以触碰时要么没知觉
要么加剧反应
如何才能避免腿麻?
要想避免上厕所腿麻
姿势很重要
1、蹲厕姿势大公开
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