Breathing and exhaling are indispensable training processes. Correct breathing methods can help us to better regulate the vitality of the body and recover from fatigue. The correct breathing method can make us get twice the result with half the effort in the training process. It is believed that the fresh air of nature can be inhaled and the polluted air in the body can be exhaled through the breathing of the lungs, so as to realize the exchange of gas in the body. In fact, it is a process of "expelling the old and absorbing the new". The so-called "clean gas" and "turbid gas", combined with modern medical knowledge, should be understood as air with extremely high oxygen content and air with extremely high carbon dioxide content respectively. People who take a deep breath for the first time will generally feel numb and trembling after taking about 50-80 breaths, and it is difficult to hold on to 320 breaths, let alone 1000 breaths. In fact, as long as you stick to it, after that bottleneck time point, you can generally stick to 200 breaths, and then continue to increase, and you will soon reach the standard of hanging.