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