Immunity plays an important role in human health and is an important system for the body to identify and destroy bacteria and viruses, and is also known as the second line of defense of the organism. The immunity of the human body will naturally decline after the age of 30, coupled with irregular lifestyle and diet habits, will lead to a state of physical subhealth, greatly increasing the incidence of chronic diseases in the elderly. 5 signs that you “immunity decline” 1, sneezing constantly, easy to catch a cold Cold is the easiest way to reflect the signs of a person’s immune system, high frequency of colds means that the immune system is low, a slight change in the weather is easy to catch a cold, in addition to a longer recovery time than others. 2, yawn constantly, easy to fatigue Some people in life and work often sleepy, snooze, even if early to bed and early to rise will appear similar situation, after rest will feel some energy recovery, but can not last too long, and will return to the state of fatigue. 3, hiccups constantly, easy nausea In fact, often hiccups, easy to eat food nausea is not necessarily a gastrointestinal problem, but the gastrointestinal immune function decreased due to. Children’s anorexia, decreased appetite, middle-aged and elderly people’s anorexia, nausea, bloating are related to the decreased tolerance of the gastrointestinal capacity. 4, bleeding more than, easy infection Some times the bump in the young is easy to recover, but in middle age sometimes there will be slow wound healing, or even wound infection phenomenon, this is because the body’s healing ability decreases, resulting in a decrease in platelet clotting factors caused by. 5, trance, easy to forget This situation occurs in the middle-aged and elderly friends, once the trance, forgetfulness, many people may say “they are old”, in fact, this sign can best reflect the body’s immune system decline, which will lead to body coordination and disorders of the vegetative nervous system. 9 strokes to activate the “immunity” 1, adequate sleep Research shows that long-term all-nighters will consume the body’s muscle tissue, seriously damage the human immune system. Adequate sleep to ensure that when you wake up physical recovery, energy, the general adult sleep time in 7 to 8 hours a day, the elderly can not be less than 6 hours. 2, drink a cup of yogurt A study by the American Health Association found that yogurt can make “bad” cholesterol (LDL) levels lower, and the probiotics contained in it can significantly improve the body’s immunity and ability to fight disease. 3, eat more garlic University of Maryland Medical Center research found that eating garlic regularly not only helps improve immunity, but also helps prevent heart disease. However, allicin is easily volatile when exposed to heat, so it is recommended to crush it and leave it for 10 to 15 minutes before eating. 4, drink lemon and honey water regularly Studies have shown that the antioxidants in honey are a booster to improve immunity; lemons are rich in vitamin C, which has antioxidant properties. Foods rich in antioxidants and vitamin C can protect the body from free radicals and harmful molecules and promote a healthy immune system. 5, leisure time drinking tea Several studies have shown that the chemical alkylamine in tea can strengthen the immune system’s ability to resist infection. For example, jasmine tea is rich in antioxidants, which helps to improve immunity; peppermint tea to refresh the brain and improve indigestion, etc. 6, insist on exercise A report by the U.S. National Library of Medicine shows that exercise can help “flush” lung bacteria, but also make white blood cells circulate more quickly, improve the immune system’s ability to detect disease. Daily activities and physical exercise can increase the body’s muscle mass and maintain nutritional status. Modern people work under a lot of pressure, but in the case of normal physical condition to ensure that five days a week, each time 30 minutes to 60 minutes of exercise can be. 7, more sun exposure Adequate vitamin D can help metabolism, reduce the risk of obesity, and sun exposure is the most economical and effective way to supplement. Generally speaking, 10:00 a.m. and 4:00 p.m. The sun’s ultraviolet rays are low, which can promote metabolism and avoid harming the skin. Each time the sun time is not more than half an hour, after the sun can rub hot hands, massage the face, have a clear heart and calm the mind, soothe the effect of fatigue. 8, keep smiling American Stanford University researchers found that a happy mood can reduce the level of stress hormones, increase or activate certain immune cells, thereby improving immunity. Too much negative emotion, not only may lead to depression and other psychological disorders, but also reduce eating, affecting the body’s nutritional status.