Which factor is NOT a common cause of fatigue at sea?

The logistics of the mission typically involve planning and coordination aspects such as resource allocation, schedule management, and the organizational structure of the operation. While good logistics can influence overall mission efficiency, they are not directly related to the physiological or psychological effects of fatigue experienced by crew members.

In contrast, lack of sleep can significantly impair cognitive function and physical performance, leading to increased fatigue. Continuous workload without adequate breaks can also wear down crew members, contributing to exhaustion. Similarly, prolonged exposure to sunlight can lead to dehydration and heat-related illnesses, which directly affects energy levels and can exacerbate feelings of fatigue onboard. These elements are all more clearly linked to the immediate causes of fatigue as experienced in a maritime environment.