Two fun facts about the Vagus Nerve before we get to a fascinating new article about how you can take care of it.   Yes, take care of it.   First, the word “vagus” comes from the Latin and it means “wandering.” Perfect. The vagus nerve is the longest and most extensive cranial nerve as it meanders its way down from the brainstem through the neck to the heart, lungs, and digestive organs.    Second, it was first described by the Greek anatomist Galen 1,400 years ago. He provid