There are several reasons for headache: 1, it may be caused by not having a good rest in the past two days, pay attention to more rest, do not stay up late, can effectively avoid the occurrence of many diseases; 2, may be caused by a lack of nutrition in the body, usually we should add more nutrition to the body, do not be partial, picky, eat more fresh fruits and vegetables; 3, if too much exertion can also appear headache, usually do not do too heavy work; 4, may be caused by It may be caused by sulking, so keep a good mood, communicate with your family often, and go out for a walk; 5, it may be a brain disease, such as cerebral hemorrhage, cerebral infarction, etc. To be safe, it is recommended that patients go to a regular hospital and have a brain CT or MRI examination; 6, patients with high blood pressure also often have headache, and this symptom will be more obvious in the afternoon.