Compared to acupuncture, the pulsed magnetic field (PMF) stimulus is a useful tool for treatment of many
physical conditions and health maintenance due to its advantages as a noninvasive and nontoxic medical treatment. The purpose of this study was to investigate the effect of PMF stimulus direction at PC9 on the alpha activity of electroencephalogram (EEG) and vascular aging calculated from photoplethysmograph (PPG). It can be concluded that the direction of PMF stimulus affects the increase of alpha activity of EEG and PPG,
indicating the vascular stiffness and the sclerosis level of blood vessels weakly relevant to the direction of PMF stimulus.