People often feel this way after exercise and are very thirsty. After drinking a lot of water, they felt more thirsty. This is mainly because the water is not selected correctly. After lack of water, it is not suitable to drink only pure water or boiled water. These water will dilute the electrolyte in the body, easily lead to hyponatremia, aggravate the excitability of the heart and nerves, and increase the risk of accidents such as convulsions or arrhythmia. The correct choice should be a bag of rehydration salt and a bottle of mineral water, which can replenish minerals and trace elements needed by the human body in time, and at the same time, rehydration salt can help the human body absorb water.

Try not to engage in outdoor sports in hot weather. When the outside temperature is higher than 32℃ and the humidity is higher than 50%, you will sweat more without exercise. At this time, sweat is not easy to evaporate, body temperature rises, and strenuous exercise is not suitable, otherwise it is easy to get heatstroke. You can do some comfortable and relaxing exercise, or exercise in a gym with suitable temperature and humidity. Once the symptoms of threatened heatstroke appear, such as dizziness, headache, thirst, sweating, nausea, weakness of limbs, rapid pulse and so on. , must immediately stop exercise, to the ventilated place physical cooling, and add salt water.