收缩血管的

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.

在性活动，头部和颈部的肌肉通常会收缩，而性高潮时血压会增高。些情况会导致的血管张，在学种情况被称为“性交性头痛”。