This work discusses the dominant models and tensions within the health field regarding the conceptualization of the human body (as a machine), the process of health work (industrial and artisanal models), institutions (hospitals and health centers) and primary agents (the medical corporation and the medical industrial complex). The context of analysis is the United States from the end of the 19th century to the present. Economic-political, ideological-cultural, and scientific-technical dimensions are discussed, which permeate the historicity of the field. The purpose is to illustrate how the health field has transformed over time, as well as the role instrumental reason and financial capital has played in this process, to the detriment of relational aspects.