Schwartz et al (95) - baseball teams from the east playing in the west (phase delay) won more games than teams from the west playing in the east (phase advance).
Czeisler et al (82) - Utah chemical plant had backward/anticlockwise shifts of 7 days. Changed it to forward/clockwise rotation of 21 days. 9 months later productivity and health had increased.
Bambra (2008) - found fast, forward/clockwise shift rotation to be best for health and work-life balance.
Dawson & Campbell (91) - exposed shift workers to 4hr pulse of bright light. Their body clocks reset.
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