Figure 6 | Scientific Reports

Figure 6

From: Sleep impairment and altered pattern of circadian biomarkers during a long-term Antarctic summer camp

Figure 6

Salivary concentrations of cortisol measured at Pre-Field (i.e., 2nd day on the ship), Field-1, Field-2, Field-3, Field-4 (i.e., 4th, 19th, 33rd, and 45th days in camp, respectively), and Post-Field (i.e., 4th day on the ship): (A) cortisol in the morning, at waking up (6:00 h–8:00 h), and (B) 30 min after waking up (6:30 h–8:30 h), (C) cortisol at night (19:00 h). Data were normalized to Pre-Field values and are expressed as means ± SD. The dots represent individual data. *Significantly different (P < 0.05) from the Pre-Field. n = 7.

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