The vagus nerve is the longest cranial nerve in the body, running from the brainstem through the neck and into the abdomen. It is responsible for regulating a wide range of bodily functions, including heart rate, digestion, and breathing. When the vagus nerve becomes pinched in the neck, it can disrupt these functions and lead to a variety of symptoms. https://nurosym.com/blogs/articles/pinched-vagus-nerve-in-the-neck-symptoms