Some people are strong and some are prone to illness, and this is due to the different immune system. The latest article in the American “Prevention” magazine, published after the scientific proof of “10 habits that destroy the immune system”, let us take a look at what are. 1, lack of sleep lack of sleep will lead to a decline in immunity, reducing the number of “killer cells” to fight germs. The University of Chicago study found that compared to people who sleep 7.5-8.5 hours a night, people who sleep only 4 hours a night, the body’s antibodies against the flu reduced by 50%. 2, depressing emotions UCLA study found that couples have constructive discussions about marital problems can help improve blood pressure, heart rate and white blood cell counts and boost immunity. Experts suggest that don’t hide the problems in your heart. 3, do not like to drink water Sufficient water can keep the respiratory mucous membrane moist, making it difficult for cold and flu viruses to multiply quickly and enhance immunity. It is recommended to drink 40 ml of water per kilogram of body weight per day, and children need to drink more water. 4, passive smoking Passive smoking is as harmful as smoking to the health of the whole body, reducing immunity. According to statistics, about 3,000 Americans die of lung cancer every year because of secondhand smoke inhalation. 5.Abuse of antibiotics Abuse of antibiotics has the potential to destroy the innate immunity of the gut, which also causes antibiotic-resistant bacterial infections. 6, to car instead of walking Studies have found that people who do not exercise in a car instead of walking are twice as likely to call in sick within four months compared to those who walk briskly on a regular basis. Experts recommend that 30 minutes of brisk walking and other aerobic exercise every day to help improve the number of white blood cells and improve immune system function. 7, small social circle Research has found that the smaller a person’s social circle, the more likely they are to get sick. Among adults aged 18-55, people with at least six friends are four times more resistant to colds than those with fewer friends. Experts suggest that frequent contact with friends and sending text messages to friends when you are busy is a new way to prevent colds. 8, couples cold skin touch is the lubricant between couples. In body contact, body temperature slightly elevated, the heartbeat slightly accelerated, the body also released many sensing elements, it can play a role in inhibiting depression and enhance the body’s immunity. 9, the lack of singing in life Singing helps to improve the immunity of people. Experts from the University of Frankfurt, Germany, examined the blood of choir members before and after rehearsals and found that, after rehearsals, the concentration of proteins in the immune system of these singers – immunoglobulin A and the anti-stress hormone – hydrocortisone – were significantly improved. 10, lack of humor Loma Linda University School of Medicine study found that watching funny videos for one hour can significantly improve immunity. Because laughing helps to reduce stress hormones, increase or activate certain immune cells and improve immunity.