摘要：野外出现脱水症状时，少量多次饮水是科学方法：脱水时身体电解质失衡（血液浓度升高），一次性大量饮水会导致水中毒（稀释血液，引发头晕、呕吐）；应每次饮用 50-100 毫升水（间隔 10-15 分钟），让身体逐步吸收，同时可加入少量盐（每升水加 1-2 克）补充电

野外出现脱水症状时，少量多次饮水是科学方法：脱水时身体电解质失衡（血液浓度升高），一次性大量饮水会导致水中毒（稀释血液，引发头晕、呕吐）；应每次饮用 50-100 毫升水（间隔 10-15 分钟），让身体逐步吸收，同时可加入少量盐（每升水加 1-2 克）补充电解质，这种方式比一次性喝饱能多吸收 30% 的水分，缓解脱水症状更快速。

Why is "drinking water in small amounts many times more effective" when dealing with dehydration?

When dehydration symptoms occur in the wild, drinking water in small amounts many times is a scientific method: when dehydrated, the body's electrolytes are imbalanced (blood concentration increases), and drinking a large amount of water at one time can cause water intoxication (diluting blood, causing dizziness and vomiting). You should drink 50-100 ml of water each time (interval 10-15 minutes) to allow the body to absorb gradually. At the same time, a small amount of salt can be added (1-2 grams per liter of water) to supplement electrolytes. This way can absorb 30% more water than drinking enough at one time, and relieve dehydration symptoms more quickly.

来源：海哥哥英语