Methods
Participants were randomly allocated to three groups (intervention, placebo, and control). Students allocated into the intervention group wore a superficial neuromodulation device (© 2020 Irmoki) while students remained seated at rest following lectures at University. The device consists of 4 wireless receptors to be placed on the distal third of the limbs by means of gloves and anklets and controlled through Bluetooth technology by a smartphone app (Fig. 
Example of neuromodulation device placement of the intervention and placebo groups. Note: image provided by Irmoki company