The Parasym works by sending small micropulses of electrical current at a specific pulse rate, pulse width, waveform and current intensity to an electrode which clips onto the Tragus of the outer ear. This area is innervated by the auricular branch of the Vagus Nerve which then projects to the brain and major organs in the body.
The Vagus Nerve is involved with many autonomic and physiological processes that are controlled through electrical signals that pass through the nerve. Through stimulating the nerve with micropulses of electrical current at specific parameters, it can be possible to harness therapeutic mechanisms of the vagus.