What's the meaning of the Chinese proverb
In the martial arts circle there is such a saying: '外练筋骨皮，内练一口气. " In appearance you do lessons on some martial arts which will drive you become stronger on the blood vessels, bones and skin; In the meantime what taking place inside of the body should be that you must have a good adjusting on breathing: A nice gas-environment can offer you enough energy for the hard performance. (The powerful muscles act as a reservoir which can absorb huge amount of oxygen with the least waste gas that is ideal condition for the ‘fish’ of your each cell. )
Through this sentence we see that ‘breath-controling’ counts half of your success on martial arts. In the special period of fighting against the coronavirus, it is necessary for us to better understand the secret of Chinese martial culture.