As we all know, when the weather is too hot, drink more water. Because, even if there is no obvious sweating, high temperature will increase the loss of body water (water evaporation, or "invisible sweating"), and the increase in the amount of loss is very considerable. Of course, the exception is always those who stay in air-conditioned rooms.

　　In addition to thirst, water loss and failure to make up in time (dehydration) will also reduce the body''s hydration, and thus reduce work efficiency and exercise capacity; will affect the body''s immunity and physical fitness; will make blood Increased viscosity is not conducive to the prevention and treatment of chronic diseases; it will increase the risk of heat stroke. Moreover, these adverse health consequences may occur to varying degrees before you feel thirsty. Therefore, you should take the initiative to replenish water in a timely manner, rather than drinking after you feel thirsty.

　　So, how much water should I drink on a hot day? Strictly speaking, there is no fixed and unified answer. Because we have to consider the actual situation, such as whether the temperature is 34° or 38°? Is the humidity high or low? Are you staying in a high-temperature environment for a long or short time? However, generally speaking, 2000~3000 ml per day (about 8~ 12 cups) or more water is necessary.

　　 There is also a way to guide the amount of water, that is, no matter how much water you drink, you should ensure that you urinate 1500 ml or more per day. 1500 ml roughly means urinating 4-6 times a day. Moreover, to ensure that the interval of urination is relatively uniform. That is to say, during the daytime, in the hottest time, there should be 1 or 2 urinations.

In addition to monitoring urine volume and urination interval, there is another method that can be used to guide drinking. That is to drink water, drink water, and drink water again, until the urine becomes clear and colorless. But it should be noted that if you drink tea, because tea itself will make urine show a certain color, it is generally difficult to do this.

As for what water to drink, I think in addition to drinks (referring to all packaged aquatic products with color and sweetness), mineral water, pure water, boiled water, tea are all good choices, watermelon , Porridge, mung bean soup, soup and other foods rich in water are also one of the effective ways to replenish water.