Grunt by Mary Roach

A fascinating and darkly funny look at the science of modern warfare by Mary Roach. In Grunt, Roach explores the strange, highly specialized, and often overlooked scientific challenges faced by soldiers — from extreme heat and noise to food, sleep, injury, insects, and battlefield medicine.

Combining investigative journalism with humor and curiosity, she visits military labs, training sites, submarines, aircraft, and research facilities to examine the science behind keeping troops alive, functional, and psychologically resilient in combat environments. As with her other books, Roach makes complex subjects approachable while uncovering bizarre and surprising details along the way.

Smart, entertaining, and unexpectedly insightful, Grunt is ideal for readers interested in military science, medicine, human performance, technology, and unconventional nonfiction storytelling.