The third edition has been completely revised to highlight new scholarship on the past and incorporate significant medical events of the most recent decade – including new technologies, drug shortages, medical assistance in dying, and recent outbreaks of infectious diseases such as Ebola, H1N1, Zika, and COVID-19. The book is organized around themes of scientific and clinical interest, such as anatomy, physiology, pharmacology, surgery, obstetrics, medical education, health-care delivery, and public health. It includes a chapter on how to approach research in medical history, updated with new resources. is sensitive to the power of historical research to inform current health-care practice and enhance cultural understanding.