Includes bibliographical references (pages 277-285).

Second skin: what to wear to war -- Boom box: automotive safety for people who drive on bombs -- Fighting by ear: the conundrum of military noise -- Below the belt: the cruelest shot of all -- It could get weird: a salute to genital transplants -- Carnage under fire: how do combat medics cope? -- Sweating bullets: the war on heat -- Leaky SEALs: diarrhea as a threat to national security -- The maggot paradox: flies on the battlefield, for better and worse -- What doesn't kill you will make you reek: a brief history of stink bombs -- Old chum: how to make and test shark repellent -- That sinking feeling: when things go wrong under the sea -- Up and under: a submarine tries to sleep -- Feedback from the fallen: how the dead help the living stay that way.