Abstract
Rhetoric about bodies, health, and medicine is conceived at the intersection of multiple discursive systems and social domains. I contend that religion remains an underexplored (and sometimes misrepresented) realm in the rhetoric of health and medicine (RHM)—a gap this article seeks to address. Here, I present my research on the importance of Protestantism in the invention of the premature infant as a medical figure in the United States. I show that early discourse about premature birth is shot through with Protestant rhetoric and beliefs, and I propose the term “theo-moral physiology” for the religiously informed medical orientation popularized in late 19th century medical literature about premature babies. Ultimately, I challenge RHM scholars to resist the tendency to treat the rise of American biomedicine as a fundamentally secular project by attending to the ways modern medicine has evolved in tandem with contemporary religion.