Mary Roach's book, "Grunt: The Curious Science of Humans at War," explores innovative medical technologies that could enhance the capabilities of military personnel. During a NATO symposium on Human Performance Optimization, various advancements were discussed, including prosthetic limbs designed for superhuman strength and eye implants that enable enhanced vision in different spectrums.

One particularly fascinating technique mentioned is corpus callosotomy, a surgical procedure that could allow soldiers to sleep using only one hemisphere of the brain at a time. This method could potentially enable them to maintain continuous alertness, significantly improving their operational effectiveness in combat situations.