Long-term low blood pressure dizziness can be improved by improving the dietary structure, appropriate physical exercise and other ways to improve the symptoms, there are patients with postprandial hypotension can be treated with drugs. 1. Improve dietary structure: patients with long-term low blood pressure can supplement high protein, high vitamin, sufficient calories, easy to digest food, such as chicken, fish, fresh vegetables, animal liver, etc.. 2. Physical exercise: appropriate outdoor physical exercise can effectively improve cardiopulmonary function and raise blood pressure. 3. Medication: Postprandial hypotension is common in the elderly, which can be improved by appropriately reducing the proportion of carbohydrates, eating fewer and more meals, and drinking water appropriately before meals, etc. Acarbose can be used to reduce the blood flow in the gastrointestinal tract. Some patients may experience a drop in blood pressure when changing from a sitting position to an upright position, which is called upright hypotension. Attention should be paid to the speed of the change in position, and pressure-raising drugs such as Midodrine should be taken if necessary. It is recommended that patients with low blood pressure pay attention to rest, develop good habits of life and work, and if necessary, need to actively seek medical attention and timely drug treatment. At the same time, pay attention to prevent falls and other situations.