Exercise in a large number of sweat, if not timely replenishment of lost water will cause dehydration, dehydration can make the body's physiological functions and exercise capacity decline. When dehydration accounts for 2% of body weight, the body's ability to reduce heat resistance, dehydration 4% when the muscle endurance is reduced; severe dehydration can make the body temperature and circulatory failure to death.
Generally speaking, in the case of sweating more, especially in the summer when engaged in strenuous exercise, should be appropriate to drink some light salt water. In summer, the temperature is high, humidity is high, the human body through sweating will be a large amount of heat energy in a timely manner, in order to maintain the relative stability of the body temperature. At the same time the body sweats a lot, take away a lot of inorganic salts, such as sodium, potassium, magnesium and so on. It has been determined that running a marathon, with the sweat away 30 grams of sodium chloride. And a person every day from the food intake of sodium chloride is only 10 to 15 grams, which will inevitably cause the body lack of salt, so that fatigue, or even cause muscle spasms or cramps.
Therefore, when engaging in strenuous exercise in summer, it is necessary to drink some light salt water appropriately. In the intensity is not too big, time is not too long, the ambient temperature is not too high in the case of exercise, the body produces less heat, will not produce a lot of sweating and inorganic salt loss phenomenon. At this time, neither salt water nor sugar water is needed. If the exercise time is longer, such as running a marathon, long-distance cycling, etc., the body's energy consumption is more, you should drink some sugar water or sugar salt water. As for general physical exercise, there is no need to drink sugar water.
As for food, the most suitable for eating after labor and exercise, there is nothing better than tofu, dried tofu and various soy products, as well as fresh fruits, melons and various vegetables. These are good alkaline foods. Kelp is known as the "crown of alkaline food".
The way to drink water is very simple: 500 to 1,000 milliliters of fresh, lukewarm water every morning after getting up. If you can't drink 500 to 1,000 milliliters of water at the beginning, it's okay, take your time, start with 200 milliliters and then increase it after you get used to it, until your body needs 500 to 1,000 milliliters. Drinking water should be done slowly so that you don't feel bloated.
Because the human body sleeps when the gastrointestinal peristalsis is very slow, but also in a state of repair, so to give the gastrointestinal a process to adapt to the movement. Drinking water after the exercise should not be too much, according to age and their own conditions to choose the amount of exercise and exercise, generally do not advocate the movement of sweat, to the body of micro-sweat is appropriate.