The Greeks are quoted as saying, "A healthy soul can only live in a healthy body." People are beginning to see that to a great extent, intellectual vigor depends upon physical vigor.

Man is an air breathing animal.

Air is life. One may go without food and water for days but not many minutes without air.

Air is the most important factor in generating vital force and it is the best tonic in the world.

A large, deep, chest indicates Health, Strength and Vitality. The size of the chest indicates the size of the lungs. A narrow chest indicates cramped lungs, heart, digestive organs and a small diaphragm.

The diaphragm is the dome shaped breathing muscle which serves as a partition between the chest and abdominal organs. Its contraction causes development of the lungs and heart and at the same time the internal massage of the abdominal organs.

The lungs have been called the scavengers of the body for they take off poison which would kill us.

As the blood stores oxygen especially at night, windows should be kept open to prepare the body for the next day's duties.

"Exercise is the elixir of youth."

Many people do not exert themselves enough to open the millions of little lung cells. Mother Nature demands a heavy price for this neglect of her laws.

The heart is now recognized as a muscle which needs muscular exercise as other muscles need exercise.

The heart is very wonderful. Although it weighs only about eleven ounces it has each day a lifting strength of 120 tons to the height of a foot. With seventy beats of a pulse a minute, six ounces of blood are forced into arteries seventy times a minute or 187½ gallons every hour. This could fill a lake or pond in a life time.

Deep breathing is the fundamental foundation of Physical Culture, of Singing and of Oratory. This is why these studies are recommended to lessen the susceptibility to disease especially tuberculosis and other lung diseases.

Deep breathing cures nervousness and many chronic complaints because it improves the circulation of the blood and causes internal massage especially of the abdominal organs.

Deep breathers are seldom mentally weak because deep breathing develops Will power. Its study causes pride in one's body and its physical gifts because it teaches the values and beauties of different parts of the body.

The habit of deep breathing cultivates Personality and Personal Magnetism and thus makes one attractive. A great deal of the success in life comes from winning people through Personal Magnetism.