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