After any patient visits the doctor, the doctor will prescribe some medical advice according to the patient’s actual situation, such as fasting and water fasting, avoiding strenuous exercise, bed rest, etc.. However, some patients cannot understand the medical advice well or even misunderstand it because they do not have medical knowledge, and some patients do not trust the doctor and do not fulfill the medical advice seriously, thus causing aggravation of the disease or prolonging the treatment time. The formation of medical advice is the most reasonable protocol for disease recovery made by all doctors based on their professional knowledge and the development of the disease process through statistics. Behind each medical advice is the accumulation of experience of countless doctors, therefore, every patient should pay attention to medical advice. 1. Fasting and water fasting In the clinic, we often encounter such surgical patients: “Doctor, I listened to you, did not eat and did not drink water, only drank a glass of milk and ate fruit”, the doctor directly fainted. Fasting and water fasting means that all food and water should be prohibited. The most direct consequence of not following the required fasting and water fasting before the operation is the temporary cancellation or postponement of the operation. After eating, the emptying of the stomach takes different time depending on the type of food, and when general anesthesia requires mask ventilation, more or less air will enter the stomach, thus causing regurgitation of gastric contents to mistakenly draw up respiratory obstruction and aspiration pneumonia, or even death by asphyxiation. For the sake of medical safety, the operation is postponed or cancelled according to the type of surgery and anesthesia. 2.Enhance nutrition Post-operative patients, pregnant women, and people with low immunity are often told to enhance nutrition. Some people think that drinking chicken soup and eating brown sugar strengthens nutrition; some people think that strengthening nutrition means eating more sea cucumber, abalone and other mountain delicacies; some others think that eating health food is the best way to strengthen nutrition …… In fact, strengthening nutrition means eating more foods with high nutrient density, such as coarse grains, soybean products, dairy products, vegetables, fruits, eggs and so on. The most important thing is to pay attention to the structure of the diet and maintain a balanced nutrition, so as to obtain a variety of nutrients that help maintain human health. 3. Absolute bed rest Absolute bed rest means bed rest for 24 hours a day, including washing face, brushing teeth, eating and urinating and defecating are not allowed to get out of bed. For patients with lumbar disc herniation, the bed position is more casual, supine, side lying can be, which is a great help to treatment. In addition to lumbar herniation, some pregnant women with placenta praevia, spinal compression fractures, acute myocardial infarction and other patients also require absolute bed rest for varying lengths of time. Bed rest, which is more popular language, means to spend most of the time in bed, and the main purpose is to increase the time of rest to ensure recovery from certain conditions. Patients can occasionally get off the floor and go to the toilet for urination and defecation. Bed rest can be semi-recumbent position, etc., according to the different conditions to adjust the bed position, more flexible. 4, eat a light diet Nutrition experts point out that light is not the same as tasteless, not to mention oil-free, protein, fatty acids, vitamins need to be supplemented in a timely manner. First of all, light to do with meat and vegetables, balanced nutrition, in addition to vegetarian dishes, lean meat, fish, eggs, etc. are high protein light raw materials; secondly, light diet but also choose the right amount and light cooking oil and appropriate cooking methods: for example, the use of corn oil will make the dishes become light, not only to retain the original flavor of the dishes, but also does not produce greasy feeling. Experts say that a light diet for the elderly should start with both taste and nutrition. Simply put, cooking should be done with less oil and salt, limiting animal food, cooking oil and salt to a reasonable range. Cook with less frying and more blanching, boiling and stewing. In addition, a light diet does not require people to restrict spicy food, on the contrary, appropriate to eat some chili, garlic, ginger, etc. will play a role in promoting health. 5, drink more water Doctors always say drink more water, how much to drink! Drinking water is good for health, we all know this thing, but in the end how much to drink the amount is also worth noting, especially kidney problems or poor metabolic status of people (such as easy edema), the amount of water intake should be particularly careful, there have been reports of drinking water to water poisoning, is a large intake of water caused by the problem. Generally speaking, people’s urine is light yellow, if the color is too light, it may be too much water, if the color is dark, it is necessary to replenish some water. 6, avoid strenuous exercise Avoiding strenuous exercise does not mean that any physical activity can not be carried out, but also depends on the intensity of the project carried out and the size of the exercise. When we say to avoid strenuous exercise, that refers to sprinting, long-distance running, high jump, long jump, three major ball games, large load of strength exercises, etc.. Appropriate walking, jogging and other fitness activities can improve the level of human function, improve the function of the blood circulation system and promote the recovery of the body. It is perfectly fine for women to do lighter sports during menstruation, such as ping pong, slow-paced gymnastics or tai chi, which are not intense.