Circadian System
The circadian system is the internal biological clock that regulates the physiological and behavioral processes of living organisms, including humans, over a 24-hour period. In space and astronautical engineering context, the circadian system is of great importance for astronauts who experience altered light-dark cycles and other environmental factors that can disrupt their circadian rhythms. Disruptions to the circadian system can lead to sleep disturbances, fatigue, and decreased cognitive performance, which can have serious implications for mission success and astronaut health. Therefore, understanding the circadian system and developing countermeasures to mitigate its disruption is a critical area of research in space and astronautical engineering.
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