Vagus nerve stimulation (VNS). Stimulation of the vagus nerve is a means of regulating the excitability of nerve cells devoid of inducing seizures. The vagus nerve, which starts within the brainstem, has many branches, and vagal nerve stimulation is applied medically to normalize heart charge in individuals with cardiac arrhythmias. https://brainhealthusa.com/psychiatrist-in-san-marino-los-angeles-county/