Hunger arises because the blood sugar concentration in the blood decreases, thus causing the body’s normal physiological response. Blood sugar comes from the organs of the digestive tract, such as the small intestine and stomach, which need to take in sufficient blood sugar from food to replenish the body with the nutrients it needs. And water will lower the blood sugar concentration in the blood, and drinking water when you are hungry will make you hungrier. Hunger can be harmful to the body, if the body does not have enough blood sugar, it will break down the body fat, making people feel dizzy, and in serious cases, even life-threatening. It is recommended to replenish food in time when hungry, and if you can’t eat on time, you can eat chocolate to boost blood sugar quickly. Excessive hunger can lead to the disappearance of hunger, which is a signal that the brain no longer transmits hunger, when the body has a serious lack of blood sugar, it is recommended to eat immediately, you can eat food containing sugar and unsaturated fatty acids, such as bread, nuts, etc.