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.

Canadian Astronaut and physician, David Williams, is the Director of the McMaster Centre for Medical Robotics at St. Joseph’s Healthcare Hamilton, and a Professor in the Department of Surgery of the Michael G. DeGroote School of Medicine.  Previous to this role, Dr. Williams served as a NASA mission specialist on STS-118 (August 8 to 21, 2007), the 119th space shuttle flight, the 22nd flight to the station, and the 20th flight for Endeavour.

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