There is no such thing as “7 types of headaches that can be a precursor to serious illness”. Headaches may be related to lack of sleep, or may be caused by high blood pressure, insufficient blood supply to the brain and other reasons. 1. Lack of sleep: If you always stay up late in the near future, or if your mental state is not good or your mood is anxious, resulting in poor sleep quality and insufficient sleep time, causing the brain not to get enough rest, it may cause headaches, which may also be accompanied by mental lethargy, weakness and other manifestations. 2. High blood pressure: When the blood pressure fluctuates and rises, it will increase the pressure in the cerebral blood vessels, which may cause headaches and dizziness, and in serious cases, nausea, vomiting and other symptoms. 3. Insufficient cerebral blood supply: Commonly found in patients with cerebral atherosclerosis and hyperlipidemia, the blood viscosity is relatively high and the lumen of blood vessels is narrowed, resulting in obstruction of blood flow and insufficient blood supply to the brain, which may cause headache, and may be accompanied by dizziness, weakness and other symptoms. When headache symptoms occur, after reasonable rest and supplemental sleep, if the symptoms continue to fail to improve, it is recommended to seek medical treatment as soon as possible, and after a clear diagnosis of the causative factors, treatment will be guided by the doctor.