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.

活动中，头部和颈部的肌肉通常会收缩，而高潮血压会增高。这些情况会导致大脑中的血管扩张，上这种情况被称为“交头痛”。