fatigue and duty roosters
These are rarely prepared by staff who take into consideration the research that shows if you have been working nights the next pattern should be a late shift <after a suitable break of course!> and after this a group of early shifts.
The body is not designed to move from a night shift to an early shift -without giving rise to errors.
Also the error rate increase after the shift is longer than 10 hours.
Some Airlines look down on personnel who regularly report in sick.
Hey-but whats new!