Conclusions Measures such as physical training and psychological counseling should be taken to relieve mental fatigue and to promote psychological health in warship crew.

结论舰员长期航行，心理健康明显受到影响，以心理疲劳为主，进行多项心理干预措施能有效改善舰员心理健康状况。

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It was claimed unrealistic rostering caused flight crew fatigue.

BBC: Plane taking off

He put it down to fatigue, because the crew had spent three days with almost no sleep.

BBC: Eyewitness: Tragedy of Soviet nuclear submarine K-27