301935.fig.001
Figure 1: Total morning cortisol levels during the 80 minutes of data collection [(area under the curve (AUC)] were lower during dim light than during blue light exposure. Although the AUC was greater during blue light exposures than during the Dim Light Session, the difference was statistically significant only for the second session. Shown are the mean ± SEM total cortisol levels (AUC for 80 minutes) for each experimental condition.