Headache, which many people consider as a minor problem, is generally not a big problem and should be fine for occasional headache or headache due to change of body position. However, if dizziness is prolonged, it should be taken seriously, as chronic headaches or frequent headaches may be a precursor to serious illness. Headache is a comprehensive condition and is one of the clinical manifestations of many diseases. The following causes of headache are common: 1. Neurological lesions: such as cerebral ischemic lesions, cerebellar lesions, brain lesions, traumatic brain injury, certain types of epilepsy, etc. In addition, patients with plant nerve dysfunction and certain neurological disorders also often feel headache. 2.Ear diseases: such as diseases in the ear that affect the balance and cause headache. 3.Medical diseases: such as hypertension, hypotension, various cardiovascular and cerebrovascular diseases, anemia, infection, poisoning, hypoglycemia, etc. 4.Cold: sometimes a cold may be accompanied by headache symptoms. 5.Degeneration of cervical vertebrae: due to long-term posture or poor sleeping posture, resulting in cervical vertebrae hyperplasia, deformation and degeneration, tightening of neck muscles, obstruction of arterial blood supply to make brain blood supply insufficient, which is the main cause of headache. It is often accompanied by neck tightness, limited flexibility, occasional pain, numbness and coldness of the fingers, and a feeling of heaviness. 6.Anemia: If you have headache accompanied by weakness and pale face, you should consider the possibility of anemia. In a healthy state, the amount of hematopoietic tissues present in the body as well as the quality and quantity of hematopoiesis has decreased in the elderly, and the aging of red blood cells themselves makes their utilization of iron much less than before. Therefore, the elderly are prone to anemia if they do not pay attention to nutritional care. In addition, patients with dyspepsia, peptic ulcer, gastrointestinal bleeding and chronic inflammatory diseases can be secondary to anemia. 7, high blood viscosity: hyperlipidemia and thrombocytosis can increase blood viscosity and slow blood flow, resulting in insufficient blood supply to the brain, which can easily lead to fatigue, dizziness and weakness. There are many causes of hyperlipidemia, the most important one is the unreasonable structure of diet, patients eat a lot of high-fat and cholesterol food, and do not like to exercise. Currently, the incidence of this type of disease is on the rise.