Grunt: The Curious Science of Humans at War

A New York Times Bestseller about the science of keeping human beings intact, awake, sane, uninfected, and un-infested in the extreme circumstances of war.

Grunt tackles the science behind some of a soldier's most challenging adversaries—panic, exhaustion, heat, noise—and introduces us to the scientists who seek to conquer them.

Mary Roach dodges hostile fire with the U.S. Marine Corps Paintball Team as part of a study on hearing loss and survivability in combat. She visits the fashion design...