Physiological polytypism is a keyword to need an anthropological thinking most in five keywords of physiological anthropology. In this paper, I will try to show approach to physiological polytypism from physiological mechanism based on the latest knowledge and data about cold tolerance in human, which studied for a long time in the field of physiological anthropology I will show the possibility of "the brown adipose thermogenesis type", "the shivering thermogenesis type", and "the high basal metabolism type" from physiological mechanisms of the thermogenesis in cold, the recent reports about the development of skeletal muscle and brown adipose cell which are the effectors of thermogenesis, and observed data.
