Determination of the functional state of the organism and its own systems of tissue metabolism is associated with the definition of t. Called. Biological age! The latter may be an objective assessment of the age and development of the human condition and perhaps to predict life expectancy. In ontogenesis (especially in its later stages), the mechanism of formation of protective reactions of the organism occupies an important place physiological system of the hypothalamus-pituitary-adrenal axis, in which the important role played by the adrenal cortex. With its careful study of the age (in the ontogenetic aspect) specified age features reactions to changing life situations. Uneven changes in regulation and adequate adaptation of an organism is determined preserving the homeostasis of the organism aging the decline in non-monetary. Presents objective, important scientific and historical factors to determine the biological age.

homeostasis, biological age, physiological resources metabolism.

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