Although it is admirable to keep the exercise schedule full, rest is still necessary. During strenuous exercise, the human body will produce more hormones, such as adrenaline and cortisol. When these hormones are increased to a certain amount, the ability of spleen to produce white blood cells in immune organs will be greatly reduced, resulting in a great decrease in the activities of A cells, B cells and natural killer cells (NK cells), of which natural killer cells are reduced by 35%.
Generally speaking, the decline of immunity after strenuous exercise should last about 1 hour, and it takes 24 hours to recover to the original level. Human immunity declines, and when attacked by bacteria and viruses, it is easy to suffer from colds, pneumonia and gastrointestinal infectious diseases. Therefore, we should pay attention to proper physical exercise, with energy and no fatigue after exercise as the standard.
Excessive exercise may lead to neurosis, reducing your reaction ability, balance ability and muscle elasticity. Although no exercise is not good, at least the human body remains stable, excessive exercise destroys the harmony of the human body itself, which is more harmful than no exercise. People are not clear about the concept of excessive exercise. Many people mistakenly think that fatigue is excessive exercise. Exercise itself is a kind of fatigue. It restores fatigue by generating fatigue. Can make the human body get exercise, strengthen muscle strength and the coordination of various organs, and slow down the aging of the body with age.
Fatigue is not a bad sign. Acute fatigue phenomena such as sweating, waist and knee aches and muscle aches are not considered excessive exercise if they can be recovered in the next exercise. On the contrary, it is called excessive exercise.
From a professional point of view, excessive exercise has two consequences, one is excessive training in competitive sports, and the other is excessive fatigue in ordinary sports. This kind of fatigue is usually chronic, and various discomfort symptoms appear in the human body through the accumulation of sports fatigue that is not fully recovered every time. Like our common knee joint strain, chronic strain of lumbar muscle and back muscle is the result of local fatigue. In this case, you need to change your exercise style. For example, people who often play basketball should reduce the number of times they play basketball and insert other sports instead of a single one.