There is no vaccine to prevent hypertension. Hypertension can be categorized into primary hypertension and secondary hypertension, and interventions can be made for different types of hypertension. Primary hypertension is the most important risk factor for cardiovascular disease and no cure has yet been found. Mild hypertension can be intervened through lifestyle. Such as: 1. Reduce weight, keep BMI (height and weight index) at <24kg/m2 as much as possible. 2. Reduce sodium intake, daily salt intake should preferably be no more than 6 grams. 3. Supplement potassium salt and eat more fresh vegetables and fruits daily. 4. Reduce fat intake, eat less or no fatty meat and animal liver. 5. Quit smoking and limit alcohol. 6. Increase exercise, exercise is conducive to reducing weight and improving insulin resistance. 7. Reduce mental stress. If lifestyle intervention fails to control hypertension, medication should be administered under the guidance of a doctor. Commonly used medications include diuretics (e.g., hydrochlorothiazide), beta receptor antagonists (e.g., metoprolol), calcium channel blockers (e.g., nifedipine), and angiotensin-converting enzyme inhibitors (e.g., captopril). Secondary hypertension refers to increased blood pressure caused by certain identified diseases and etiologies, such as renal parenchymal hypertension, renal vascular hypertension, primary aldosteronism, pheochromocytoma, cortisolism, and aortic stenosis, etc. Prompt medical attention should be sought for the treatment of the primary disease.