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近年来,人们总相信:常做“深呼吸”是一种有益健康的活动,因为这种呼吸可以增加氧吸入量、松驰神经,还能加速体内“废物”二氧化碳的排出。然而,近来国内外医学专家的不少研究所提供的有关资料表明:任何形式的深呼吸都不会有益,反而可能对健康有害。其实,氧气和二氧化碳都是人体必不可少的,人体血液中不仅要有2%的氧,也必须有6.5%的二氧化碳。空气中氧的浓度是21%,它是人体需求量的10倍。一般情况下,平静的呼吸就可获得所需的氧。但空气中二
In recent years, it has always been believed that “deep breathing” is often a healthful activity because it increases oxygen intake, relaxes nerves and accelerates the excretion of “waste” carbon dioxide in the body. However, some recent studies by medical experts both at home and abroad have provided relevant information which shows that any form of deep breathing can not be beneficial, but may be harmful to health. In fact, oxygen and carbon dioxide are essential to the human body, the body’s blood not only have 2% oxygen, but also must have 6.5% of carbon dioxide. The concentration of oxygen in the air is 21%, which is 10 times the human demand. Under normal circumstances, calm breathing can get the required oxygen. But in the air two