GruntGrunt n. informal a low ranking soldier. At a converted movie studio, amputee actors prepare army medics for the shock and gore of combat wounds, while at a base in East Africa, diarrhoea threatens national security. Beyond weapons and strategy, this is about the other side of war how scientists protect soldiers from panic, exhaustion, heat, and noise. Setting about her task with infectious enthusiasm, the incomparable Mary Roach sniffs archival World