During strenuous activity, the heat in the body increases, and sweating is the main way to dissipate heat. After sweating a lot, you need to replenish water in time, otherwise it will not only lead to fatigue and thermoregulation disorder, but also lead to the accumulation of acid metabolites, which will lead to fatigue and decreased exercise ability. Therefore, the drinks suitable for sports are alkaline drinks with sugar content below 5% and inorganic salts such as potassium, sodium, calcium and magnesium.
Generally, pure water has removed minerals, so it is not suitable for drinking pure water alone during exercise, and the content of inorganic salts in it may not meet the needs of exercise, so it is not suitable as a supplementary fluid during exercise. For people who don't exercise for more than 1 hour and have low exercise intensity, the amount of sweating will not be great, as long as they drink 1 ~ 2 glasses of water before and after exercise, while those with high exercise intensity drink 1 glass of water before exercise, every 20 ~ 30 minutes during exercise and 65438 after exercise.