The vagus nerve is a crucial part of the autonomic nervous system, responsible for regulating various bodily functions such as heart rate, digestion, and breathing. When this nerve gets compressed or irritated in the neck, it can lead to what is known as a pinched vagus nerve. This compression can occur due to poor posture, repetitive neck movements, or even trauma. https://nurosym.com/blogs/articles/pinched-vagus-nerve-in-the-neck-symptoms