Drink more when the weather is hot.

Drinking more hot water may be useful or counterproductive. Generally speaking, drinking more hot water usually has a good effect on human health, such as accelerating blood circulation and increasing gastrointestinal peristalsis. However, drinking too much hot water may lead to water poisoning, dehydration hyponatremia, kidney damage and so on.

1, the absorption speed of hot water is faster than that of cold water, which can increase the moisture in human body.

Thereby accelerating the metabolism and discharge of water and heat in the body. In addition, drinking hot water can accelerate human blood circulation, dilate gastrointestinal capillaries, increase gastrointestinal peristalsis and help digestion. At the same time, hot water can also relieve human muscles, especially abdominal muscles, thus relieving symptoms such as pain and spasm.

2, if you drink too much hot water, it may lead to water in the human body can not be ruled out, water poisoning, increased kidney burden and other symptoms. Under normal circumstances, if the water intake exceeds the diuretic speed of the kidney and the excess water cannot be discharged, it may cause symptoms such as cell expansion, leading to dehydration and hyponatremia. And because all urine must be filtered by the kidneys before it can be discharged, if the water intake is too high, the workload of the kidneys will increase greatly. After a long time, it will not only make the human body fully absorb ingredients, but also cause kidney damage to a certain extent.

Drinking a small amount of ice water at a time will not cause obvious harm to the body, while drinking a large amount of ice water will mainly cause dentin allergy and affect digestion. In addition, drinking a lot of ice water for a long time may also affect the reproductive system or make people easy to catch a cold. For elderly patients, drinking too much ice water is easy to induce angina pectoris.

1, dentin hypersensitivity: drinking ice water will stimulate teeth nerves, causing tooth pain and sensitivity, which will take some time to disappear, but sensitive symptoms will generally recover quickly;

2, affecting digestion: a large number of ice-water drinks will stimulate the digestive tract, enter the stomach and strongly contract small blood vessels, which is easy to cause gastrointestinal cramps and affect normal digestive function. In addition, the function of digestive enzymes needs a suitable temperature. Ice water will drastically reduce the temperature of digestive tract and the activity of digestive enzymes in the stomach. The undigested food will enter the intestine, which may lead to diarrhea.