The reason why anger can cause headache may be transient cerebral ischemia or hypertension, as follows: 1. Transient cerebral ischemia: Because a person will induce sympathetic excitation after getting angry, sympathetic excitation will cause transient constriction of cerebral blood vessels, which will lead to headache, dizziness and other symptoms of insufficient blood supply to the cerebral arteries. 2. Hypertension: In addition, a person will also cause a stressful increase in blood pressure when he or she is emotionally excited, and if the Blood pressure rises above the normal range and is more serious, easily causing headaches, dizziness and other symptoms, and in serious cases, may lead to acute cerebrovascular disease such as cerebral hemorrhage. Therefore, patients with headache symptoms after getting angry should pay attention to rest and calm themselves down. Most patients can improve their headache symptoms after their mood is calmed down. If the symptoms persist and cannot be relieved, a prompt cranial CT examination should be performed to rule out the possibility of acute intracranial cerebrovascular disease.