Figure 3

Subjects’ mood values in five assessments during the experiment (mean ± SEM), including (a) calmness/excitement, (b) sleepiness/alertness, and (c) happiness/sadness. The first assessment was before the shift work. The last assessment was after the shift work. The other three assessments were during the consecutive shift work. (The figure was generated by Origin 2018, URL: https://www.originlab.com/).