openThis study aims to investigate the role of transcranial alternating current stimulation (tACS) in managing stress by enhancing frontal midline theta (FMT) waves and to evaluate the suitability of closed-loop amplitude-modulated transcranial alternating current stimulation (CLAM-tACS) in modulating brain activity, in order to compare open-loop and closed-loop stimulation.This study aims to investigate the role of transcranial alternating current stimulation (tACS) in managing stress by enhancing frontal midline theta (FMT) waves and to evaluate the suitability of closed-loop amplitude-modulated transcranial alternating current stimulation (CLAM-tACS) in modulating brain activity, in order to compare open-loop and closed-loop stimulation