The air we breathe is composed of approximately 78% nitrogen and 21% oxygen. The first and most important need a child has when it is born is oxygen. That need remains the same for the rest of his life. It has been said that we can live without food for about 40 days, and without water for 4 days and without oxygen for 4 minutes.
The air we breathe needs to be pure, free of pollution. In our world today the air is often polluted with chemicals. The air in our homes is polluted by the chemicals we use to clean or the chemicals in the carpet and materials that have been used to construct the house.
The air we breathe has several functions in the body, among them is energy. The more oxygen available to your cells, the more energy you will have. Yawning is a mechanism that the body uses to self-regulate the intake of oxygen for sleep or upon waking up in the morning.
Deep breathing brings in copious amounts of oxygen and allows the body to release stress. The oxygen brought in by deep breathing helps the heart and other vital organs regulate themselves.
Without sufficient oxygen a person will have foggy thinking, weakness, and tiredness, and if the lungs are not functioning properly, eventually carbon dioxide poisoning.
So get to it! Exercise, walk, jog get the oxygen flowing!