人运动时容易出汗,身体有很多水分流失,人就会感觉口渴,同时也会流失很多盐分。如果口渴时喝进大量的水,体液的浓度就会显著下降。人体内的水和盐是有一定比例的,为了保持原有的体液浓度,身体就得排出多余的水,于是汗水就会流得更多,体内的盐与水就越会流失,人越会觉得渴。 People tend to sweat during exercise, the body has a lot of water loss, people will feel thirsty, but also lose a lot of salt. If you drink too much water when thirsty, the body fluid concentration will drop significantly. The body of water and salt is a certain proportion, in order to maintain the original concentration of body fluids, the body must discharge excess water, so sweat will flow more, the more the body of salt and water will be lost, the more people will Feel thirsty