Vagus nerve stimulation (VNS). Stimulation from the vagus nerve is a method of regulating the excitability of nerve cells without inducing seizures. The vagus nerve, which commences from the brainstem, has numerous branches, and vagal nerve stimulation is applied medically to normalize coronary heart rate in those with cardiac arrhythmias. https://brainhealthusa.com/psychiatrist-in-arcadia-los-angeles-county/