Vagus nerve stimulation (VNS). Stimulation of the vagus nerve is a method of regulating the excitability of nerve cells devoid of inducing seizures. The vagus nerve, which begins inside the brainstem, has several branches, and vagal nerve stimulation is employed medically to normalize heart fee in those with cardiac arrhythmias. https://brainhealthusa.com/psychiatrist-in-santa-clarita-los-angeles-county/