The Vagus Nerve

The vagus nerve stimulates the deep organs of the thorax and the abdomen (eg, heart, lungs, stomach, pancreas, small intestine, upper half of the large intestine, and liver). The physiological significance of this nerve in terms of the influence of the parasympathetic system is clearly illustrated by its widespread distribution and the fact that 75% of all parasympathetic fibers are in the vagus nerve. 

Our Parasympathetic Nervous System is the calm, chilled out one. Imagine sitting in a comfortable chair reading your favourite book. Your heart and breathing rates are slow. Your digestive system is relaxed and slowly working on digesting and absorbing your last meal. You are focused on the quiet activity of reading your book. No other thoughts are disturbing you. Maintaining Vagus Nerve health is essential for the body to operate effectively.