In his book "Flood your body with Oxygen", Ed McCabe, says that plenty of oxygen makes aerobic ATP. Each cell has an engine called the mitochondria (structures occurring in varying numbers in the cytoplasm of the cell.) ATP is the engine's fuel used for all the energy-requiring processes within the cell. Our cells do not use the nutrients we consume for their immediate supply of energy; instead, when needed, they prepare an energy-rich compound called ATP. ATP consists of one molecule of adenine and ribose (called adenosine) combined with three phosphates and oxygen atoms. A considerable amount of chemical energy is stored in the ATP molecule. When the outermost bond of the ATP molecule is broken, it releases energy equivalent to 7,000 calories. Although ATP serves as the energy current for all cells, only about 3 ounces of ATP are stored in the body at any one time. This would provide only enough energy to sustain strenuous activity for 5 to 8 seconds. In order for our cells to provide a continuous supply of energy, they are constantly synthesizing ATP. This means that the more oxygen-enriched the body is, the more ATP the cells can produce.