At present, the recovery of physiological functions in a cooled man after different kinds of accidents and sea catastrophes (accidental hypothermia) is a topical task of emergency medicine and, at the same time, an important problem of thermobiology, thermoregulation, and bioenergetics. This work outlines the disturbances of the physiological functions of the body at different stages of the development of accidental hypothermia, the main modern methods of recovery of these functions, and some unresolved problems of the physiology of resuscitating hypothermia victims. New achievements in the study of the mechanisms of cold-induced disorders of physiological functions are presented in this work, and the correction of the physiological methods for restoring the life activity of a cooled man is proposed.