Women need about 2500ml of water every day. Only when this amount of water is consumed can it be good for the skin. Water demand is mainly affected by factors such as age, ambient temperature, and physical activity. The amount of urine excreted by the human body in a day is about 1500 ml, plus the water lost from feces, breathing and skin, the total human body water consumption is about 2500 ml. Therefore, a healthy adult needs about 2500 ml of water every day. , of which drinking water accounts for about 50%, water contained in food is about 40%, and water produced by metabolism in the body accounts for 10%.

Adults with light physical activity who live in mild climate conditions should drink at least 1200ml of water per day. Under conditions of high temperature or strong physical labor, the amount should be increased appropriately. You should also drink more water when you are sick, especially when you have a fever, because your metabolism speeds up by about 7% for every 1° increase in body temperature.

Water is not only the main component of the body, but also has many physiological functions. It is mainly divided into two types: free water and bound water.

Water has a strong dissolving power. Many substances can be dissolved in water and dissociated into ionic states, playing an important role. Water-insoluble proteins and fats can be suspended in water to form colloids or emulsions, which are convenient for digestion, absorption and utilization; water directly participates in oxidation-reduction reactions in the human body and promotes various physiological activities and biochemical reactions; blood cannot be maintained without water Physiological activities such as circulation, respiration, digestion, absorption, secretion, and diarrhea cannot be carried out in the body. Metabolism in the body cannot be carried out; water has a large specific heat, which can regulate body temperature and keep it constant.

Reference: Drinking water-Baidu Encyclopedia