The four basic elements of life are: Oxygen, hydrogen, nitrogen and phosphorus. These four elements are found in abundance in both the human body and in animals. There are other elements that compose the human body, but the four we've highlighted participate in all life processes. Besides, these four elements make up ATP chains (molecule), which governs and controls the body entirely energy processes and physiological and pathological processes of the human body. Oxygen is the pivot, which produces water and air and it is indispensable to the life. Hydrogen participates with oxygen to produce water, without which life would not be possible. Nitrogen with oxygen constitutes basic elements of air that compose the Earth's atmosphere. Phosphorus is the last element of human energy chain. It is the fire and light. In other words, human energy chain consists of four basic elements, or three compounds: Water, air and fire (light). In genetics, all cellular energy processes are driven and controlled by ATP molecule type. If we consider the chain of human genes, account must also be taken of the element carbon. In this mode, the four elements of life become the five elements of life: Oxygen, hydrogen, nitrogen, phosphorus and carbon.