Vagus nerve stimulation (VNS). Stimulation with the vagus nerve is a method of regulating the excitability of nerve cells with no inducing seizures. The vagus nerve, which begins within the brainstem, has several branches, and vagal nerve stimulation is used medically to normalize heart fee in individuals with cardiac arrhythmias. https://brainhealthusa.com/psychiatrist-in-santa-clarita-los-angeles-county/