Vagus nerve stimulation (VNS). Stimulation with the vagus nerve is a means of regulating the excitability of nerve cells without the need of inducing seizures. The vagus nerve, which starts inside the brainstem, has many branches, and vagal nerve stimulation is made use of medically to normalize heart rate in https://brainhealthusa.com/psychiatrist-in-san-marino-los-angeles-county/