头痛是一种常见症状。许多人都犯过这种毛病。引起头痛的原因很多:用脑过度,使大脑疲劳,脑内耗氧增加,供血不足,就会出现头痛和头晕。因头部本身的原因或全身性疾病也可以引起头痛。头部本身原因,如各种眼病、用眼过度、慢性鼻炎、耳病、牙齿疾病、咽喉 Headache is a common symptom. Many people have made this mistake. Cause a lot of headaches: excessive use of the brain, the brain fatigue, increased oxygen consumption in the brain, lack of blood supply, there will be headaches and dizziness. Headaches can also be caused by the head itself or by systemic disease. Head itself causes, such as various eye disease, overuse, chronic rhinitis, ear disease, dental disease, throat