Fatigue is not a bad sign. Some acute fatigue phenomena, such as sweating, waist and knee aches, muscle aches, etc., 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 generally chronic, and various discomfort symptoms appear in the human body through the accumulation of sports fatigue that is not fully recovered every time. Just like our common knee joint strain and chronic back muscle strain, it is the result of local fatigue.
Only by understanding the symptoms of excessive fitness can we judge whether we have similar problems. Fitness can't be seen in a day or two, and it needs long-term persistence. You must not want to eat a fat man in one breath, but also need to increase strength exercise step by step, and you must not blindly over-exercise.