Water is the source of life, and the water content in the human body is about 70% of the normal weight, so we should pay attention to replenishing water to the body. Many people mistakenly think that we only need to drink water when we are thirsty. In fact, when we are thirsty, our body is already short of water, so drinking some water when we are not thirsty and replenishing enough water to our body can promote metabolism, prevent blood from being sticky, promote detoxification and prevent diseases. If people don't drink water for a long time, it will cause many problems.

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Drinking water is the key to self-regulation of body temperature, especially in winter, because the air is dry and the water loss is more serious. Drinking water regularly can prevent the body from further dehydration.

A study shows that the older people are, the more water they need to drink to make up for the changes in body temperature regulation. The researchers found that when the elderly exercise, the metabolism of all aspects of the body is slower than that of the young, and the "thirst center" located in the hypothalamus begins to become dull, and the brain cannot judge whether the body is thirsty in time, so it is easy to cause dehydration. Researchers suggest that people over the age of 65 should keep drinking 1.5-2 liters every day, but not too much, otherwise it will also cause potential diseases.

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Drinking too little water can lead to constipation. Because the stool is not discharged in time, it will absorb the water in the intestine, and the intestinal wall will be dry because of too little water, which will aggravate constipation.

People with constipation had better drink about 2 liters of water every day, and try to swallow it faster, so that the water can reach the colon as soon as possible and stimulate intestinal peristalsis. At the same time, we should also pay attention to supplement some dietary fiber. Drinking a cup of high-fiber vegetable juice every day can improve it. Gout is caused by the increase or decrease of uric acid in human body and the deposition of urate in joints, kidneys and other parts. Drinking less water will lead to uric acid not being excreted smoothly, and the risk of illness will also increase. Experts suggest that gout patients can drink more mineral water rich in strontium and calcium.

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If patients with hypertension, hyperlipidemia and hyperglycemia don't drink enough water, the blood viscosity will increase and the blood circulation will slow down, which will easily lead to myocardial infarction and cerebral thrombosis. It is suggested that patients with "three highs" drink more water with high magnesium content.