1, water directly participates in the redox reaction in human body, promoting various physiological activities and biochemical reactions; Without water, it is impossible to maintain physiological activities such as blood circulation, breathing, digestion, absorption, secretion and diarrhea, and metabolism in the body cannot be carried out;

2, the specific heat of water is large, which can regulate the body temperature and keep it constant. When the outside temperature is high or the body generates a lot of heat, evaporation and sweating of water help to dissipate heat. When the weather is cold, because water has great potential to store heat, the human body will not be cooled by the cold outside, and water has great mobility.

3. Water can transport oxygen, nutrients and hormones. On the one hand, metabolites and toxic substances can be excreted through defecation, urination and sweating. Water is also a self-contained lubricant in the body, such as skin moisturizing. Tears, saliva, joint capsule and serous cavity fluid are all lubricants for corresponding organs.

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Extended data:

When water is scarce, besides feeling thirsty, there will be dry skin, cleft lip, fatigue, less urine, dizziness, headache and other phenomena, and in severe cases, there will be mental symptoms such as fever and irritability.

Insufficient water will lead to gastrointestinal digestion, blood nutrition, body fluid concentration adjustment and other functional disorders. And it can also cause back pain, deformed knee joint disease, arthritis and other diseases.

But don't drink too much water, which will lead to too much salt loss in the human body. At first, there will be dizziness, weakness, rapid heartbeat and other symptoms. In severe cases, there will even be convulsions, confusion and coma, that is, water poisoning.

References:

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