Why do some people seem to be forever free from disease, while others always have colds for three days or two? Ultimately, it’s all due to different immune systems. Immunity depends on your lifestyle, a regular healthy life can make your immunity constantly improve, while some bad habits can become a thief to steal your immunity, so that you are always tormented by minor illnesses and pains. The following 6 bad habits will make your immunity continue to decline, hurry to change it! Lack of sleep Lack of sleep can lead to a decline in immunity, reducing the number of “killer cells” to fight germs. The University of Chicago study found that people who slept only 4 hours a night had 50% fewer antibodies to fight off the flu compared to those who slept 7,5-8,5 hours a night. Depressing emotions Studies have found that couples who have constructive discussions about marital problems help improve blood pressure, heart rate and white blood cell counts and boost immunity. Don’t keep your problems to yourself, experts suggest. Not drinking water Drinking enough water keeps the mucous membranes of the respiratory tract moist, making it difficult for cold and flu viruses to multiply quickly and boosting immunity. It is recommended to drink 40 ml of water per kilogram of body weight per day, and children need to drink more water. The study found that people who do not like to exercise by car instead of walking will take twice as long to take sick leave in 4 months compared with those who walk regularly. Experts suggest that 30 minutes of aerobic exercise such as brisk walking every day can help improve the number of white blood cells and improve immune system function. Lack of humor Studies have found that watching funny videos for one hour can significantly improve immunity. This is because laughing helps to lower stress hormones, increase or activate certain immune cells and improve immunity. Misuse of antibiotics Misuse of antibiotics has the potential to disrupt innate immunity in the gut, which is what causes antibiotic-resistant bacterial infections. Studies have found that this is a complication resulting from the widespread use of antibiotics that will cause greater harm to the health of the patient. Mood and human health are closely related. When a person is in a bad mood, the brain will produce corresponding substances to inhibit various body functions, which will cause a series of unhealthy reactions, and it is also easy to develop bad lifestyle habits when in a bad mood. So when the mood is bad, you must find a way to adjust, you can go out and take a walk, find a friend party, watch a good movie, go singing and vent.