Due to the increasing acidic environment in our body due to exercise, PH value decreases. This may cause damage to the myofascial tissues. Performing deep breathing exercises after exercise not only provides oxygen regeneration but also helps to eliminate the increasing acidic environment. The reason for the rapid breathing after the end of the exercise is to complete the deficiency of the cells that cannot get enough oxygen during the exercise and try to return the metabolic systems in our body to normal. This is called oxygen borrowing.