Noninvasive method for vagus nerve stimulation shows promise for enhancing motor rehabilitation after stroke

The longest nerve in the human body starts in the brain and meanders its way down the neck and into the chest, where it splits into separate branches, winding its twisting tendrils to touch each internal organ. Known as the “information superhighway” and aptly named from the Latin word meaning “wanders,” the vagus nerve is a bundle of fibers responsible for the parasympathetic nervous system: digestion, heart rate, breathing.