And while the importance of deep breathing is shown, the practice should be insisted upon. Let exercises be given which will promote this, and see that the habit becomes established.
Every body function that is carried on is directly related to the life of the cells, which are the basic units of every part of the body. Without oxygen, cells die within three to four minutes. Not only will cells die when there is no oxygen, but they do not perform well, are damaged, and disease can result.