Head and neck muscles often tighten during sexual activity, and blood pressure can increase at orgasm, causing blood vessels in the brain to dilate, a condition technically named coital cephalgia.
性活
，
部和颈部的肌肉通常会收缩，而性高潮时血压会增高。这些情况会导致大脑的血管扩张，学术上这种情况被称为“性交性痛”。
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生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
