We all know that proper and easy exercise, regular life and mental relaxation are conducive to smooth blood pressure. Different fatty acids in dietary fats have different effects on blood pressure. Polyunsaturated fatty acids and polyunsaturated fatty acids have the effect of lowering blood pressure, so you can choose fats rich in unsaturated fatty acids when choosing edible oils. Vitamin C, carotene, dietary fiber and phytochemicals are beneficial in stabilizing blood pressure. The diet should pay attention to the intake of fresh vegetables and appropriate fruits. The staple food should pay attention to the coarse and fine mix, and eat some coarse grains appropriately. In conclusion, the principles of hypertension prevention and treatment are as follows: 1. Control the total dietary energy and maintain an appropriate body weight. 2.Limit salt. 3.Increase the intake of potassium. 4.Increase calcium and magnesium intake. 5.Limit total fat and cholesterol, appropriate fat ratio. 6.Appropriate high quality protein, increase the intake of vegetable high quality protein. 7.Limit the consumption of alcohol. 8.Drink hard water. 9.Appropriate exercise.