Figure 8.

Correlation between shift-work schedules and clock gene expression in six rotating shift workers. The average phase shift of waking-time and circadian gene expression was calculated among the six subjects. The phase delay from the 1st to the 2nd week and the phase advance from the 2nd to the 3rd week are shown. The life style was phase-delayed by about 7 h from the 1st to the 2nd week, whereas the phase of circadian gene expression was delayed only by about 2 h. The figures are adapted from Akashi et al. (2010).