What changes occur in the body of a mammal that has fallen into winter sleep?

Hibernation is prepared and accompanied by a restructuring of many physiological and biochemical processes, which takes place under the influence and control of the neurohumoral system, which reflects endogenous rhythm and reacts to seasonal changes in living conditions, primarily, to a deterioration in the ability to obtain food. This mechanism provides preliminary preparation of the body and allows you to adapt it to the specific conditions of the year. Changes in the behavior and nature of the metabolism ensure the accumulation before hibernation of significant reserves of fat in the subcutaneous tissue and body cavity, ascorbic acid (vitamin C) in the tissues, glycogen and vitamin E in the liver.

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