First, limit salt salt intake and hypertension is positively correlated, that is, the more salt intake in the population the higher the blood pressure level. Average daily salt intake increases by 1 gram, the average high pressure rises 2mmHg, low pressure rises 1.7mmHg. 30 grams of salt intake per person per day in northern Japan, the result of hypertension, stroke incidence rate is significantly higher than the world average, known as the “Kingdom of Hypertension” and “Kingdom of Stroke “. On the contrary, a Jamaican island daily salt intake of less than 2 grams, there is no occurrence of hypertension. The World Health Organization stipulates that the daily intake of salt per person shall not exceed 6 grams, where 6 grams not only refers to table salt, but also includes monosodium glutamate, soy sauce and other salt-containing seasonings and the amount of salt in the food. Ordinary life can be “salt spoon” to help us control the amount of salt intake, there is no “salt spoon” does not matter, we can refer to a beer bottle cap of salt is about 2 grams of salt control methods, but also can be used in the original amount of salt on the basis of a reduction of 1/3 ～The way to reduce salt by 1/3 on the basis of the original amount of salt can also be used ~1/2. Second, weight control Body Mass Index (BMI) is calculated as follows: BMI = weight (kilograms)/height (meters)2 BMI ≥ 25 for overweight, BMI ≥ 27 for obesity. ①Regular measurement of blood pressure, 1 ~ 2 weeks should be measured at least once. ② Treatment of hypertension should adhere to the “three hearts”, that is, confidence, determination, perseverance, only by doing so can we prevent or delay the damage to the body’s vital organs. ③Take the antihypertensive drugs regularly, do not reduce or stop the drugs at will, but can be adjusted under the guidance of the doctor and the present condition to prevent the blood pressure from rebounding. If the condition permits, you can bring your own sphygmomanometer and learn how to measure your blood pressure. ⑤ In addition to taking appropriate medication, it is also necessary to pay attention to the combination of work and rest, pay attention to diet, exercise appropriately, maintain emotional stability, and get enough sleep. (6) Elderly people should not lower their blood pressure too quickly, and it is better to control their blood pressure at 140～159mmhg to reduce the occurrence of cardiovascular and cerebrovascular complications. (7) The elderly and those taking noradrenergic nerve endings blocking drugs to prevent postural hypotension. Fourth, moderate exercise Exercise on the importance of hypertension: there is a saying: “When you are young, use health for money, when you are old, use exercise for health.” Exercise can not only promote blood circulation and reduce cholesterol production, but also enhance the occurrence of muscle, bone and joint stiffness. Exercise can increase appetite, promote bowel movements, prevent constipation and improve sleep. Have the habit of continuous exercise: it is best to do aerobic exercise to help. Aerobic exercise can lower blood pressure as well as weight loss, such as walking, jogging, tai chi, cycling and swimming are all aerobic exercises. 1, the precautions for exercise ① Do not overdo it or too strong too tired, to take a gradual approach to increase the amount of activity. ② Pay attention to the surrounding environment and climate: summer: avoid the midday sunshine; winter: pay attention to warmth, anti-stroke. ③ Wear comfortable and sweat-absorbent clothes: cotton clothing and sports shoes are necessary. ④ Choose safe places: e.g. parks, schools, not in alleys or on the side of the road. ⑤ Do not exercise on an empty stomach to avoid hypoglycemia, it should be 2 hours after meals. 2, the contraindications of exercise ① sick or uncomfortable should stop exercising. ② hunger or one hour after meals should not do exercise. ③ Exercise can not be stopped immediately, to comply with the steps of the exercise program. ④ Any discomfort during exercise should be stopped immediately. V. Quit smoking and limit alcohol Smoking can lead to high blood pressure. Research has proved that after smoking a cigarette, the heart rate increases by 5-20 times per minute, and the systolic blood pressure increases by 10-25mmhg. Why is this? Because tobacco contains nicotine (nicotine), which excites the central nervous system and sympathetic nerves, accelerates the heart rate, and also prompts the adrenal glands to release a large number of catecholamines, which constricts small arteries and leads to an increase in blood pressure. Nicotine also stimulates chemoreceptors in blood vessels, reflexively causing blood pressure to rise. Long-term heavy smoking will also promote atherosclerosis of large arteries, small arteries gradually thickening of the lining, so that the whole blood vessel gradually hardened. At the same time due to smokers in the blood of carbon monoxide hemoglobin content increases, thus reducing the oxygen content of the blood, so that the arterial lining hypoxia, the arterial wall of the lipid content of oxygen increases, accelerating the formation of atherosclerosis. Therefore, people without high blood pressure can prevent the occurrence of hypertension by quitting smoking, and people with high blood pressure should quit smoking. In contrast to smoking, the health benefits of alcohol consumption are controversial. From time to time, various reports have appeared, some say that drinking a small amount of alcohol is beneficial, some say that it is harmful, but one thing is certain that drinking a large amount of alcohol is definitely harmful, and the high concentration of alcohol will lead to atherosclerosis and aggravate high blood pressure.