Chronic hypertension refers to primary hypertension, the cause of primary hypertension is not completely clear, and is considered to be related to multiple factors, the result of a combination of genetic and environmental factors. Primary hypertension is a chronic disease, and there is no cure for it. It requires long-term treatment with blood pressure-lowering drugs to keep blood pressure under control in the target range. It is also necessary to actively engage in lifestyle management, including a low-salt, low-fat diet, smoking and alcohol cessation, weight control, exercise, eating more vegetables and fruits, and maintaining a good state of mind. It is also important to actively control other cardiovascular risk factors, such as hypertension, diabetes, and hyperlipidemia.