diaphragm. Other causes of shallow breathing are found in the absence of
vigorous exercise, in the leading of an indoor and inactive life, in
obstructions in the nostrils and upper pharynx, and in the lack of
attention to proper methods of breathing.
To prevent shallow breathing one should have the habit of sitting and
standing erect. The clothing must not be allowed to interfere with the
respiratory movements. The taking of exercise sufficiently vigorous to
cause deep and rapid breathing should be a common practice and one should
spend considerable time out of doors. If one has a flat chest or round
shoulders, he should strive by suitable exercises to overcome these
defects. Obstructions in the nostrils or pharynx should be removed.
*Breathing Exercises.*--In overcoming the habit of shallow breathing and in
strengthening the lungs generally, the practicing of occasional deep
breathing has been found most valuable and is widely recommended. With the
hands on the hips, the shoulders drawn back and _down_, the chest pushed
upward and forward, and the chin slightly depressed, draw the air slowly
through the nostrils until the lungs are _completely_ full. After holding
this long enough to count three slowly, expel it quickly from the lungs.
Avoid straining. To get the benefit of pure air, it is generally better to
practice deep breathing out of doors or before an open window.
By combining deep breathing with simple exercises of the arms, shoulders,
and trunk much may be done towards straightening the spine, squaring the
shoulders, and overcoming flatness of the chest. Though such movements are
best carried on by the aid of a physical director, one can do much to help
himself. One may safely proceed on the principle that slight deformities
of the chest, spine, and shoulders are corrected by gaining and keeping
the natural positions, and may employ any movements which will loosen up
the parts and bring them where they naturally belong.(36)
*Serious Nature of Colds.*--That many cases of consumption have their
beginning in severe colds (on the lungs) is not only a matter of popular
belief, but the judgment also of physicians. Though the cold is a
different affection from that of consumption, it may so lower the vitality
of the body and weaken the lung surfaces that the germs of consumption
find it easy to get a start. On this account a cold on the chest which
does not disappear in a few days, but which persists, causing mo
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