Czeisler C A, Moore-Ede M C, Coleman R H
Science. 1982 Jul 30;217(4558):460-3. doi: 10.1126/science.7089576.
Workers on rotating shifts dislike those aspects of their work schedules that violate circadian sleep-wake cycle physiology. Work schedule satisfaction, subjective health estimates, personnel turnover, and worker productivity improve when schedules are introduced that are designed to incorporate circadian principles.