Impact of Supplements on Stress Markers

The stress protocol used for this experiment utilized a cognitive challenge and a previously studied virtual reality active shooter drill (VR-ASD). The cognitive challenge included a modified version of the Stroop challenge (2 min) and mental arithmetic calculations (2 min) presented to the subject via e-Prime 2 software (Psychology Software Tools, Inc., Pittsburgh, PA, USA). Immediately upon completion of the cognitive challenge, the subjects completed the VR-ASD scenario (\~2 min) followed by the same cognitive challenge with different questions (another 4 min). The total duration was \~10 min.