Blood pressure is the pressure that blood exerts on the walls of blood vessels as it flows through them, and it is divided into systolic and diastolic pressures. Systolic pressure is the highest pressure in the arteries when the ventricles of the heart contract (commonly known as "high pressure"); diastolic pressure is the lowest pressure in the arteries when the ventricles diastole (commonly known as "low pressure"). It is now generally recognized that normal adult systolic blood pressure is 90-140 mm Hg and diastolic blood pressure is 60-90 mm Hg. Adults with systolic blood pressure below 90 mmHg and diastolic blood pressure below 60 mmHg are called "hypotensive". Hypotension is categorized as acute or chronic. Acute hypotension is most commonly seen in syncope and myocardial infarction. The causes of chronic hypotension are often seen in: 1. Constitutional hypotension, also known as primary hypotension. This kind of hypotension can be completely asymptomatic, or only have weakness, palpitations and so on. The causes of essential hypotension are related to heredity and are influenced by emotional and environmental factors. 2. Postural hypotension, also known as upright hypotension. When a normal person is standing, the systolic blood pressure can drop temporarily and the diastolic blood pressure remains unchanged, but the systolic blood pressure can return to normal within 30 to 40 seconds. If the blood pressure drops by more than 50 mmHg from the lying position to the upright position or after the upright position, and does not rise for a long time, it is called "postural hypotension". This situation is common in the vegetative nerve function disorder, after a long period of illness or after taking some drugs. 3. Suffering from endocrine diseases, such as hypothyroidism, chronic hypoadrenocorticism, anterior pituitary hypopituitarism. 4. Suffer from chronic consumptive and chronic malnutrition diseases, such as malignant tumors, tuberculosis, hepatitis and so on. 5. Suffering from cardiovascular diseases, such as chronic pericardial effusion, severe mitral stenosis. In the above causes of hypotension, physical and postural two of the most common, these two kinds of low blood pressure is not necessarily a manifestation of the disease, such as to the hospital examination did not find other abnormalities, there is no need to worry. However, patients should usually actively participate in sports activities, physical and mental relaxation, in order to enhance the physical and neurological function of the stability. In addition, patients can also use the following two prescriptions for treatment as appropriate. 1. 10 grams each of licorice and cinnamon sticks, 1 dose per day, brew water as tea. This formula is suitable for those who are physically weak, dizziness and fatigue. It is not suitable for those with blood deficiency and heat. 2. 12 grams of Schisandra chinensis, 12 grams of licorice, 15 grams of Poria, 1 dose per day, make tea. For "symptomatic" low blood pressure caused by primary diseases, patients should go to the hospital for comprehensive examination and treatment, when the primary disease is cured, the symptoms of low blood pressure can be improved or disappeared. Low blood pressure and dizziness should eat what a bone chicken (about 1500 grams). Chicken hair dissected belly wash, put the chicken belly belly 60 grams of angelica head, astragalus 50 grams, 150 grams of brown sugar, 50 grams of rice wine, and then the chicken belly sewing tight, into the pot of water steaming, eat meat and drink broth, eat every half a month, ate for two months. Second, 15 jujube kernel, 150 grams of corn, a net chicken, chicken cut into pieces, stir-fried over high heat, then add seasonings, cook to eight mature, plus jujube, chestnut stewed to eat. Third, 1 carp, 60 grams of glutinous rice. The fish will be cleaned (do not remove scales) and glutinous rice **** cooked into porridge, 2 times a week, served two months. Fourth, tender hen 1, astragalus 30 grams, fresh asparagus 100 grams (dry 15 grams). Chicken washed into the boiling water blanch, rinse with cool water. Tianma, astragalus sliced into the chicken belly. Put the chicken in a casserole, add onion, ginger, salt, wine, 15 grams of Chenpi, water, moderate, stewed over moderate heat until the chicken is rotten, add pepper 2 grams, can be consumed. Fifth, 1 pig heart, 20 grams of astragalus, 12 grams of angelica, 30 grams of codonopsis, 6 grams of chuanxiong, add water and stew, eat pig heart and drink soup. Six, 20 grams of jujube, 15 grams of Radix et Rhizoma Ginseng, raw and cooked each 10 grams of water, add the right amount of water with a stew pot steamed for 3 hours, add the right amount of honey twice a day to eat, served for 15 days. Seven, leek appropriate amount, mashed juice, daily morning service 1 cup, often take, can make the blood pressure back to normal. Eight, angelica, astragalus, jujube 50 grams each, 4 eggs with boiled, eat eggs and drink soup, 1 time a day in the morning and evening, fasting.