"Spring should be the way to keep fit". For people, we should pay more attention to diet and nursed back to health in spring. The temperature changes greatly in spring, so the nutrients in spring should be mainly high in calories. Because hot and cold stimulation will accelerate the decomposition of protein in the body, leading to the decline of body resistance, it is necessary to supplement high-quality protein food, such as eggs, fish, chicken and bean products. In spring, bacteria, viruses and other microorganisms begin to multiply in large numbers, and their vitality is enhanced, which is easy to invade the human body and cause diseases. Therefore, you should take enough vitamins and inorganic salts in your diet. Fresh vegetables such as Chinese cabbage, rape, bell pepper and tomato, and fruits such as citrus and lemon are rich in vitamin C, which has antiviral effect. Yellow-green vegetables such as carrots and amaranth are rich in vitamin A, which can protect and strengthen epithelial cells of upper respiratory mucosa and respiratory organs, thus resisting various pathogenic factors. Food rich in vitamin E should also be eaten to improve human immune function and enhance the body's disease resistance. This kind of food includes sesame, blue cabbage and cauliflower. Motherland medicine also believes that "spring should be sour and sweet to nourish the temper." This is because when the liver qi is strong in spring, it will affect the spleen, so it is easy to appear spleen and stomach weakness in spring. Eating more sour food will make the liver function high, so the spring diet should be nursed back to health, and it is advisable to choose spicy and warm products to avoid sour taste. Diet should be light and delicious, avoid greasy, cold and irritating food. Spring health "when you need food supplements." However, according to the characteristics of the gradual increase of human yang in spring, we must choose a flat and clear diet to avoid backfiring. Nutritionists believe that middle-aged and elderly people with premature aging, people suffering from various chronic diseases, people with thin bodies, people with backache, dizziness, sallow complexion and listlessness can make use of this season of spring to choose appropriate food supplements according to their own physique and illness, so as to achieve the purpose of preventing and treating diseases. Older people with the above situation can take a plain diet. Foods with this function are: buckwheat, barley and other cereals, beans such as soybean milk and red beans, fruits such as oranges and apples, sesame seeds and walnuts. Can be taken for a long time. If the elderly have internal heat due to yin deficiency, they can choose the method of clearing and replenishing. This kind of food includes: pear, lotus root, shepherd's purse, lily and so on. This kind of food is cold, and it has the function of clearing away heat and diminishing inflammation after eating, which is helpful to improve bad physique. Generally speaking, the tonic for the sick or recovered elderly should be mainly cool, light, delicious and digestible, and rice porridge, lotus seed porridge, green vegetable paste and pork floss can be selected. Chinese medicine believes that "a hundred herbs germinate and all diseases break out", which means that spring is easy to relapse. Because it is warm and windy in spring, it is suitable for the reproduction and spread of microorganisms such as bacteria and viruses. Therefore, there are many exogenous factors in spring, which should be paid more attention to for the elderly who are weak. Facts have proved that in spring, anyone with hyperactivity of liver yang is particularly prone to headache and dizziness, which is also the reason why Chinese medicine has long pointed out that "all diseases in spring are at the head". Modern medicine also found that climate change in spring can easily raise people's blood pressure, causing headaches, dizziness, insomnia and other symptoms. The diet prevention method is to eat 250-500 grams of bananas or oranges every day, because bananas contain potassium ions, which can lower blood pressure. In addition, regular consumption of lemon, pear and mung bean with more potassium is also beneficial to the prevention and treatment of hypertension. Gastric and duodenal ulcer diseases are also prone to occur in spring. Avoid eating pork soup, chicken soup, fish soup, beef soup, spinach, beans, animal offal and irritating condiments rich in creatine, purine and other substances, because these foods have a strong effect of stimulating gastric juice secretion or forming gas to produce abdominal distension, which increases the gastrointestinal burden. Diet prevention, honey therapy can be used. After steaming honey water, take it on an empty stomach before meals, daily 100 ml, and take it three times. Or use 250 ml of milk, boil it, add 50 g of honey and 6 g of bletilla striata, and mix well before drinking. These all have the effect of nourishing yin and benefiting the stomach.

I hope my answer is helpful to you. I wish you progress in your study and smooth work. ^_^