Immune system is an extremely important line of defense for human body, which can effectively identify bacteria and viruses invading human body. The maintenance of immune system depends not only on external energy intake, but also on its own exercise. Of course, such an important line of defense should be carefully cared for. Fasting for three days will definitely have an impact on the human immune system. As for how bad the influence is, it depends on one's physical fitness. There is no standard answer, so it is wrong to restart the human immune system. As for how much water to drink during this period, it must be a lot of water, because to cut off the nutritional demand for food, you need to get trace elements from water to maintain your body's needs for three days. Clinically, many people have physical problems and even digestive system failure because of fasting. Three meals a day is extremely important. As the saying goes, people are iron rice steel. If you don't eat a meal, you will be hungry. No matter how much you eat, it is not good for your health.
Some people want to restart the human immune system in this way, just to improve immunity, but this is not the right way. To strengthen the human immune system, we should start from ourselves and develop good work and rest and eating habits. Sugar intake should be controlled in daily life, because a large amount of sugar will inhibit the activation of immune cells, reduce insulin secretion, and also control the intake of alcoholic beverages. Alcohol can break down vitamin B, thus affecting the body's immunity. More importantly, exercise properly and don't be lazy at home all day.
So don't listen to fasting for three days, it can really restart the human immune system. The human immune system depends on people's diet and exercise. If you want to enhance your immunity, you must start from yourself.