Vagus nerve stimulation (VNS). Stimulation on the vagus nerve is a method of regulating the excitability of nerve cells with no inducing seizures. The vagus nerve, which commences within the brainstem, has numerous branches, and vagal nerve stimulation is used medically to normalize heart price in people with cardiac arrhythmias. https://brainhealthusa.com/psychiatrist-in-san-marino-los-angeles-county/