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Baseline characteristics of the population (N = 19).
| Mean | SD | |
|---|---|---|
| Age (years) | 22.4 | 2.0 |
| Body mass index (kg/m2) | 22.1 | 1.6 |
| Systolic blood pressure (mmHG) | 113.5 | 8.0 |
| Diastolic blood pressure (mmHG) | 72.8 | 6.4 |
| Heart rate (bpm) | 73.0 | 14.7 |
| Coffee consumption (units/day) | 0.6 | 0.9 |
| Alcohol consumption (units/day) | 0.2 | 0.5 |
| Normal sleep duration (hours) | 8.0 | 1.0 |
| Salivary cortisol change from 15 to 30 min after the MAST (%) | 94 | 59 |
