This is because muscle produces adaptive response, and muscle fibers become thicker and larger.

It is also due to the accumulation of lactic acid during exercise.

Only by persistence can the body adapt to change.

Just like the "second breath" in exercise.

At the beginning of exercise, the body has no obvious reaction.

But after a certain period of exercise, the body began to feel uncomfortable.

This is because the internal organs of the body cannot be mobilized in time. When the internal organs are mobilized, the body can be involved in a lot of exercise.

The same is true of body movements.

Therefore, insisting on exercise is the best way to solve the pain.

Don't worry, there will be no problem.