Sleep deprivation produces changes including alteration of mood, irritability, fatigue, less focus and disorientation, also perceptive distortions, visual hallucinations and considering tasks harder and less pleasant. In resident physicians, these alterations have been shown to affect their work performance. Naps have proved to improve arousal and attention, alertness and performance. Those longer than 90 minutes promote a learning process similar to that occurring in REM sleep. Therefore a nap schedule could improve the decision making of residents during their working hours.
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Decision making
Timeframe: At 12:00 on the day of the nap.