THE BREATH
The proper management of the breath is an important part of good speaking. Some teachers say the air should be inhaled on all occasions exclusively through the nose. This is practically impossible while in the act of speaking. The aim should be to speak on full lungs as much as possible; therefore a breath must be taken at every opportunity. This is done during the pauses, but often the time is so short that the speaker will find it necessary to use both mouth and nose to get a full supply of air. The breathing should be inaudible.
Practise deep breathing until it becomes an unconscious habit. In taking in the breath the abdomen and chest both expand, and in giving out the breath the abdomen and chest both contract. By this method of respiration the abdomen is used as a kind of "bellows," and the strain is taken entirely off the throat. The breathing should be done without noticeable effort and without raising the shoulders. Whenever possible the breathing should be long and deep. While speaking, endeavor to hold back in the lungs, or reservoir, the supply of air, "feeding" it very gradually to the vocal cords in just the quantity required for a given tone. Reciting aloud, when properly done, is a healthful exercise, and the voice should grow and improve through use; but to speak on half-filled lungs, or from the throat, is distressing and often injurious.
Keep your shoulders well thrown back, head erect, chin level, arms loosely at the sides, and in walking throw the leg out from the hip with easy, confident movement. The weight of the body should be on the ball of the foot, altho the whole foot touches the floor. The breathing should be deep, smooth, and deliberate.
When the breath is not being used in speech, breathe exclusively through the nose. This is particularly desirable during the hours of sleep. As someone has said, if you awake at night and find your mouth open, get up and shut it. A well-known English authority on elocution says that as a golden rule for the preservation of the health, he considers the habit of breathing through the nose invaluable if not imperative. Air, which is the breath of life, has always floating in it also the seeds of death. The nose is a filter and deodorizer, in passing through which the air is cleansed and sent pure into the lungs. The nose warms the air as well as purifies it, and thus prevents it from being breathed in that raw, damp state which is so injurious to those whose lungs are delicate.
Speak immediately upon opening your mouth. Try to turn into pure-toned voice every particle of breath you give out. Replenish the lungs every time you pause. Light gymnastics, brisk walking, running, horseback riding, and other exercise will improve your breathing capacity.