How does the vagus nerve influence feelings of pain? Created with Sketch. Activation of the immune system, along with the stress response, is one of the first-line defenses in response to threat.
Each participant was implanted with a device that stimulates the left vagus nerve — a major conduit between the brain and the internal organs — but only half the devices were turned on.
Nearly 20 years ago, knowing all other options had failed, Nick’s sister, a nurse, recommended he check out a new treatment called vagus nerve stimulation, or VNS. The US Food and Drug ...