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| | 睡得越舒服，身体越受伤？ | | | 潮新闻 ｜ 2026-09-26 | | | |
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scroll 0 1 近日，“举手式睡姿是身体在求救”登上微博热搜，引发广泛共鸣。不少人发现，自己睡觉时总不自觉地把手举过头顶，起初觉得格外放松，醒来却手臂发麻、肩颈酸痛。
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浙江省中山医院睡眠障碍中医诊疗中心副主任中医师刘盈君解释，这种举手式睡姿在临床上被称为“海星式睡姿”，它虽然让人觉得舒服，但恰恰可能是身体在用姿势发出求救信号。
举手式睡姿：舒服背后的代偿危机
举手睡姿令人舒适的机制主要有两个。
首先要关注的一种是呼吸代偿。刘盈君表示，健康呼吸应由横膈膜主导，横膈膜下沉与上提的运动本身就能帮助肌肉放松。但当压力或不良体态使横膈膜“罢工”时，呼吸会转为肩颈肌肉代偿，这些肌肉在夜间也无法休息。举手能增加肩颈部位的局部血供，暂时缓解紧张，于是身体下意识地保持了这个姿势。
其次是神经血管压迫。锁骨、肋骨与肌肉围成的“胸廓出口”是神经血管通道，通道变窄时，举手可以暂时“撑开”通道、减轻麻木感，身体便会习惯并且记住这个姿势。
然而，这种“自救”的代价不小。刘盈君强调，高抬双臂会使腹压增高，睡前进食过饱者、老年人和晚期妊娠者尤其明显，长时间如此可形成反流性食管炎。
同时，举手姿势会限制肋间肌、膈肌和胸廓的自然回拉与舒张，影响肺部呼吸，造成胸闷疲劳。上肢血液循环受阻还可能导致肩背酸痛、手部发麻，久而久之甚至引发末梢神经炎。
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点击朱笔，直抒胸臆