The Missing Chapter of Physiology: The Importance of Teaching The Physiology of Dying

Physiology education is devoted to explaining how life works, yet the biological processes that occur at the end of life are rarely discussed in physiology classrooms. This omission leaves an important chapter of the physiological narrative unfinished. In this article, we propose that the physiology of dying offers a powerful integrative lens through which students can revisit and consolidate core physiological concepts. Rather than representing a sudden event, dying can be understood as the progressive loss of coordinated homeostatic regulation, marked by declining energy availability, disruption of communication among organs, collapse of electrochemical gradients, and the gradual disappearance of physiological variability. Teaching this process allows students to reinterpret familiar principles—such as homeostasis, energy use, and systems integration—from the perspective of their failure. We describe how an interactive teaching session on the integrated physiology of dying was implemented in an undergraduate physiology course and summarize student perceptions and examination outcomes associated with this approach. Integrating the physiology of dying into physiology education may complete the conceptual arc of the discipline and deepen students’ understanding of how living systems ultimately return to equilibrium.