Difficulty Swallowing
When we think of the vagus nerve, we typically think of its role in regulating the heart rate. However, this nerve also plays an important role in our digestive system. Damage to the vagus nerve can lead to a condition known as dysphagia, which is characterized by difficulty swallowing.
First, let’s look at how the act of swallowing works. When we swallow, a complex series of muscle contractions occur in the mouth, throat, and esophagus. The brain and nerves coordinate these contractions to move food or liquid from the mouth to the stomach. For example, the vagus nerve relays signals from the brain to the muscles of the throat and esophagus to tell them when to contract.
Vagus nerve damage can lead to problems with coordination and muscle movement, making it difficult or even impossible to swallow, a condition also known as dysphagia. It can range from mild to severe. In some cases, dysphagia may only occur when eating, while in others, it may make it difficult or impossible to drink liquids. The course of treatment for dysphagia will depend on the underlying cause. Dysphagia resulting from vagus nerve damage usually resolves on its own with time and rest.
