A normal adult should drink about 1500-3000ml of water every day. Water is a necessary component of the human body, and every organ of the human body needs water for normal operation, so it is recommended that everyone should adhere to drinking sufficient amount of water every day to ensure the normal operation of the human body. If patients sweat after exercise or physical work, they can drink more water to replenish the lost water, and they can also drink vitamin drinks to replenish vitamin C, vitamin B6, potassium, sodium and chlorine, which are essential to the human body.