Enhances emotional wellbeing: Vagal tone (the strength of vagus nerve function) is closely tied to emotional resilience and mental health. Higher vagal tone is associated with lower anxiety, better emotional regulation, and a greater ability to cope with stress.

Facilitates communication between organs: It helps coordinate organ functions to maintain homeostasis (the body’s stable internal environment). For example, it sends signals from the brain to the stomach to begin digestion or from the lungs to slow breathing during rest.

Plays a role in reflexes: It is involved in reflex actions like coughing, swallowing, sneezing, and gagging. Proper vagus nerve function ensures these reflexes work efficiently, protecting the body from harm.

Promote healing and recovery: By activating the parasympathetic nervous system, the vagus nerve helps the body repair itself after injury or illness. It reduces oxidative stress and enhances cellular recovery.

Image credit: Photo from University of Minnesota Medical School. https://twin-cities.umn.edu/