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 may lack inorganic salts, which is manifested by the lack of potassium and magnesium in muscle cells.

Studies have shown that magnesium can promote glycogen decomposition, accelerate energy metabolism and improve sports performance. When magnesium is deficient, glucose produces lactic acid through anaerobic glycolysis, which causes muscle aches and spasms. Magnesium helps cells maintain aerobic oxidation and reduce the production of lactic acid, even during strenuous exercise. Magnesium is necessary for potassium to enter cells and calcium to enter and leave cells. Supplementing magnesium salt can avoid electrolyte imbalance caused by excessive sweating. In addition, magnesium and calcium are responsible for producing high-energy phosphorylates, such as adenosine triphosphate, which is necessary for muscle exercise. Therefore, you should drink alkaline drinks with sugar content less than 5% and inorganic salts such as potassium, sodium, calcium and magnesium during exercise, especially for athletes. Generally, minerals are removed from pure water, so it is not advisable to drink pure water alone during exercise.

Fitness experts point out that lazy exercise is harmful to the body, and occasional exercise is harmful to the body, which is tantamount to "overeating." As a result of long-term inactivity, the body has actually adapted to this state. Occasionally intense high-intensity exercise will break the already formed physiological and physical balance, and the consequences will be worse than no exercise. As a result, you have a series of symptoms (feeling tired, sore thighs, poor breathing, and feeling sick and vomiting from time to time). ) are normal physical reactions, and it is recommended to take time to do moderate exercise often.

It is generally believed abroad that any beverage with added nutrients can be called functional beverage. Functional drinks can be roughly divided into sports drinks, energy drinks and health drinks. Sports drinks mainly add electrolytes such as potassium, sodium, calcium, magnesium, etc., and their components are very similar to human body fluids, which can quickly supplement trace elements consumed by human body due to exercise, such as body drinking and pulsation. Energy drinks mainly add ingredients to enhance human physique, which can improve human endurance. The health beverage is added with nutrients with health promotion effect. The popular functional drinks in China mainly include: green tea drinks with antioxidant function, fruit and vegetable drinks rich in vitamins and carotene, plant protein drinks that provide energy and protein, such as almond dew, and drinks that can improve human anti-fatigue ability, such as red bull. Functional drinks that can strengthen the body are generally aimed at everyone, but people should pay attention to some problems when drinking. Some functional drinks are only aimed at specific groups of people. For example, some functional drinks contain caffeine and other ingredients that stimulate the central nervous system. Adults can refresh themselves and resist fatigue, but children as students should use them with caution. For example, the product description of Red Bull says that its function is anti-fatigue and suitable for people, especially adults. Some drinks have the function of lowering blood fat, and children should not drink them. Sports drinks are suitable for drinking after strenuous exercise and profuse sweating. After drinking, it can be quickly absorbed by the body and replenish water and salt in time. But for patients with heart disease and hypertension, the sodium contained in it will increase the burden on the body, resulting in an increase in heart load and blood pressure, so it is not suitable for drinking. Therefore, when people buy functional drinks, they should first read the instructions of the drinks to prevent drinking the wrong drinks, which is harmful to health. Therefore, it is advisable to drink sports drinks such as pulse after exercise, and Red Bull is an energy drink.