狂扫一盘冰激凌或猛灌一瓶冷饮之后,许多人都会经历不同程度的头痛。为什么会这样?哈佛大学医学院的研究小组日前揭开了其中的秘密。研究者发现,进食生冷食物后,流向大脑前动脉中的血流量会迅速增加。因为颅骨是一个封闭结构,当血供突然增加时,颅内的压力也会相应增加,从而导致头痛。研究者认为这种现象是一种自然的求生本能,因为大脑是人体中最关键的器官之一,且一直处于工作状态,因此需要保持温度相对稳定的血流供应。一旦 After sweeping an ice cream or pouring a bottle of cold drink, many people experience varying degrees of headaches. Why is this? Harvard Medical School team recently opened the secret. The researchers found that after eating cold food, blood flow to the anterior cerebral artery will rapidly increase. Because the skull is a closed structure, when the sudden increase in blood supply, the intracranial pressure will be a corresponding increase, leading to headaches. Researchers think this phenomenon is a natural survival instinct, because the brain is one of the most critical organs in the body, and has been in working condition, so the need to maintain a relatively stable temperature blood supply. once