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Overview of all individual elements of the well-being composite score, for the summer and winter separately. (A) mood, (B) drowsiness (ESS), (C) sleepiness (KSS), (D) need for recovery, and (E) subjective performance. Significance codes: *** p < 0.001, * p < 0.05, # p < 0.1 ns: not significant. Sample sizes per condition are shown.
