During strenuous exercise or endurance exercise, heat production in the body increases, and sweating is the main way to dissipate heat. 98% to 99% of sweat is water, and the rest is mainly inorganic salts such as potassium, sodium, calcium and magnesium. After sweating a lot, it is necessary to replenish water in time, otherwise it will not only lead to fatigue and athletes' thermoregulation disorder, but also lead to the accumulation of acidic metabolites, which will lead to fatigue and the decline of sports ability. Athletes who feel tired and weak may lack inorganic salts, which are characterized by the lack of potassium and magnesium in muscle cells.

Therefore, it is very important to properly replenish water after fitness. You can drink ordinary cold water or add some glucose. Used to replenish energy.

Eat more foods rich in protein, such as eggs, beef, yogurt and so on.

The average person needs about 1 g protein per kilogram of body weight every day.

Fitness people need to consume about1.5-2.0g of protein per kg of body weight every day. It is common for people who exercise to eat more than a dozen kinds of protein every day, but they should take it according to their own situation. Eating too much will not only waste high-quality protein, but also increase the burden on liver and kidney. Be careful about the intake of egg yolk. Although egg yolk is nutritious, it has high cholesterol! Generally, there should be no more than two in a day. The staple food is mainly pasta, and eat more fruits and vegetables.