Prevention of hypertension: the principle is “three disciplines, eight points of attention”, “three disciplines” that is, regularity of life, scientific diet, sports and cultural activities frequently. The “eight points of attention” that is to maintain normal blood pressure, maintain normal weight, maintain normal blood lipids, diet balance, quit smoking and control alcohol and limit salt, adhere to moderate physical exercise, mental and psychological health, establish self-care awareness often test blood pressure and regular medical care. Specifically should do: diet should be light, eat less salty food. Eating too much salt will promote vascular sclerosis and blood pressure, hypertensive patients should eat less than 6 grams of salt per day is appropriate. Eat less animal fat, animal fat contains high cholesterol, will accelerate atherosclerosis. Eat less sweets, eat too much sugar can be converted into fat in the body, easily promote obesity and atherosclerosis. Quit smoking and alcohol, smoking can aggravate the condition of hypertensive patients, drinking alcohol can accelerate atherosclerosis. Eat more food containing potassium, potassium in the body can buffer the harmful effects of sodium, to promote the excretion of sodium, can lower blood pressure. Foods high in potassium and low in sodium include soybeans, pinto beans, tomatoes, celery, fresh mushrooms and various green leafy vegetables; fruits include oranges, apples, bananas, pears, kiwis, persimmons, pineapples and hawthorn. Eat more food containing high quality protein and vitamins, such as fish, milk, lean meat, eggs and soy products, vitamins such as B, C and E, which have the effect of dilating blood vessels and lowering cholesterol, and can change the permeability of blood vessels, so that the blood vessels remain elastic. Eat more calcium-containing foods, such as shrimp, bone broth, green leafy vegetables, black fungus, walnuts, etc. Strengthen exercise, reduce weight, aerobic exercise is beneficial to the prevention of hypertension. Aerobic exercise such as walking, jogging, practicing qigong, playing tai chi, swimming, etc. It has been proven that the “crossword” to prevent hypertension, namely weight loss, salt limitation, exercise, smoking cessation and relaxation, is worth learning.