The immune system is one of the most important safeguards for good health, but the body’s immune function declines with age as a result of a combination of factors. Among them, congenital factors are secondary and acquired factors are the main ones, including environment, diet, living habits, diseases, etc. Therefore, it is especially important to pay attention to boosting your immunity in your daily life. The immunity of the human immune system is maintained mainly by food, and various nutrients must be reasonably matched, any kind of insufficient or excessive intake is detrimental to the human immune system. Nutrients include proteins, fats, sugars, and vitamins and minerals. Protein is the main component of white blood cells and lymphocytes in the immune system, and the body also needs protein as a raw material in the manufacture of interferon. The nutrition experts recommend the determination of the method of meat and vegetarian, a week to eat more than 50 different types of food. 2, to strengthen the exercise relaxed exercise, has been the whole of mankind is advocating the habit of life. Proper exercise is an effective way to improve immunity. In addition, exercise can improve the human body’s nervous system, digestive system, internal organs, motor system and bones, thus improving the immunity of the human body. The United States Apatocian State University has three studies pointing out that after exercising 30-45 minutes a day, five times a week for 12 weeks, the number of immune cells will increase and the resistance will increase relatively. 3, on time to sleep to ensure sleep sleep is the body’s immune function. Professor Berry Darby, an immunologist at the University of Florida, conducted a series of studies on sleep, hypnosis and human immunity, and concluded that sleep can eliminate fatigue and generate new vitality, but also has a close relationship with the ability to improve immunity and resist disease. When entering the sleep state, the body secretes a large number of hormones related to metabolism and immunity, and the immune system is working actively. If you do not get enough sleep, not only the body fatigue is not restored, and due to insufficient hormone synthesis, will cause the internal environment dysregulation. 4.Emotional optimism and smiling often Huge psychological stress will lead to the increase of hormonal components that have suppressive effect on human immune system, thus suppressing the body’s immune function. Clinical statistics show that more than 90% of tumors are directly or indirectly related to mental and emotional. The public number pulse health care only do the latest and most professional health care knowledge. Research results from the Institute of Psychology of the Chinese Academy of Sciences also show that long-term tension in work and study, incompatibility in interpersonal relationships, and major misfortunes in life are three important factors in causing cancer. 15 kinds of healthy food to improve the immune system 1, white mushrooms Mushrooms contain the mineral selenium and antioxidants, low levels of selenium in the body often increase the risk of aggravation of heavy colds. Mushrooms also contain the B vitamins riboflavin and niacin, which play an important role in maintaining a healthy immune system. 2, oysters Oysters contain the mineral zinc, and zinc can fight viruses. Experts have shown that zinc is related to several functions of the immune system, which also includes wound healing. 3, watermelon ripe watermelon contains a large number of powerful antioxidants glutathione, which has a moisturizing and refreshing effect. Since it helps strengthen the immune system, it can fight infection. Glutathione is located in the red loam near the rind of the melon. 4.Cabbage Cabbage is a vegetable rich in glutathione (with immune enhancing function). Adding cabbage to the soup and stewing it slowly can release antioxidants into the soup, thus increasing the nutritional value of the food. 5, almonds A handful of almonds can boost your immune system’s resistance to stress. 1/4 cup serving of almonds contains almost half of your daily requirement of vitamin E, which can increase immunity. Almonds contain riboflavin, niacin and B vitamins that also help combat stress. 6, grapefruit Grapefruit is rich in vitamin C, which has a positive effect on the treatment of colds and flu. In addition, grapefruit also contains a large number of flavonoids, natural chemicals that help increase the vitality of the immune system. Malt Malt is a part of wheat seeds that nourishes wheat seedlings, which indicates its richness in nutrients, including zinc, antioxidants, and B vitamins and some other important vitamins and minerals. Malt also contains fiber, protein and unsaturated fats. Therefore, we can use malt to replace some of the flour when baking and cooking. 8, low-fat yogurt The probiotics in yogurt can stimulate the immune system, and a glass of yogurt a day can reduce the chances of getting a cold. In addition, yogurt also contains vitamin D, which also plays a positive role in the immune system. 9. Garlic Garlic contains a number of antioxidants that can fight germs that invade the immune system. These include H. pylori, which is associated with stomach ulcers and stomach cancer. Cooking tips: Peel it, leave it for 15-20 minutes and then cook it so that it activates immunity-boosting enzymes. 10, spinach Spinach is rich in folic acid, which helps produce new cells and repair DNA. also rich in fiber, antioxidants such as vitamin C. 11, tea Tea contains disease-fighting tea polyphenols and flavonoids, antioxidants that can find free radicals that damage cells and destroy them. 12, sweet potatoes like carrots, sweet potatoes contain beta-carotene that can remove free radicals, but also rich in vitamin A that has the effect of delaying aging and anti-cancer. 13, broccoli Broccoli contains vitamin A, vitamin C and glutathione, but also rich in ascorbic acid, can enhance the liver’s detoxification ability, improve the body’s immune system. And a certain amount of flavonoids in it, it has regulatory and preventive functions for high blood pressure and heart disease.