Fatigue a Concern for U.S. Troops in Iraq As the war progresses, military commanders keep a sharp lookout for fatigue in front-line troops. Studies provide a good model for how much sleep deprivation soldiers can take before performance rapidly deteriorates. NPR's Joe Palca reports.
NPR logo Fatigue a Concern for U.S. Troops in Iraq

Fatigue a Concern for U.S. Troops in Iraq

As the war progresses, military commanders keep a sharp lookout for fatigue in front-line troops. Studies provide a good model for how much sleep deprivation soldiers can take before performance rapidly deteriorates. NPR's Joe Palca reports.