Risk Risk of Performance Decrements and Adverse Health Outcomes Resulting from Sleep Loss, Circadian Desynchronization, and Work Overload
Short Title: Sleep Last Published:  11/23/20 11:55:09 AM (Central)
Element: Human Factors and Behavioral Performance (HFBP)
Evidence:  Report
Risk Master Logic Diagram:  Diagram
Point of Contact:  Erin Flynn-Evans
HRP Risk Status: Active [current research ongoing]
Risk Ratings and Dispositions per Design Reference Mission (DRM) Category
DRM CategoriesMission
OperationsLong-Term Health
LxCRisk Disposition *LxCRisk Disposition *
Low Earth Orbit6 months3x2Accepted/Optimize3x1Accepted
1 year3x2Accepted/Optimize3x1Accepted
Deep Space Sortie1 month3x2Accepted/Optimize3x1Accepted
Lunar Visit/
1 year3x2Accepted/Optimize3x1Accepted
Deep Space
1 year3x3Requires Mitigation3x2Requires Mitigation
Planetary3 years3x3Requires Mitigation3x2Requires Mitigation
Note: LxC is the likelihood and consequence rating. The information above was last approved by the Human System Risk Board in 8/2019.
Risk Statement
Given that astronauts experience sleep loss, circadian desynchronization, and work overload, there is a possibility that performance decrements and adverse health outcomes will occur.
Gaps (3)