NASA fatigue research

NASA fatigue research investigates how sleep deprivation, irregular schedules, and long work hours affect astronauts’ alertness, decision-making, and overall health during space missions. By studying these effects, NASA aims to develop strategies and technologies—such as optimal sleep schedules and alertness management tools—to reduce errors and ensure crew safety. The research helps understand fatigue in extreme environments, applicable not only in space but also for demanding Earth-based occupations, improving overall human performance and well-being under conditions of physical or mental strain.