Human space flight presents many behavioral challenges
associated with working in an extreme harsh environment.
Concerns about alterations in cognitive function have
led to a series of experiments to assess human performance
in space and to develop strategies for assisting crew
working in these mission critical environments. Day-night
cycles every 45 minutes may affect circadian rhythms
and the absence of gravity can result in disorientation
particularly during space walks. Understanding these
adaptations is of importance in preparing for future
missions to the Moon and Mars.