The vagus nerve runs from the brain to all the major organs of the body. It regulates your heartbeat, your immune system, your digestion and pretty much every bodily function that keeps you alive.However, most people don't take care of their vagus nerve, and it's easily harmed by stress, poor eating and the typical modern lifestyle. When the vagus nerve is damaged, the balance of the body is broken, causing illness, inflammation, and discomfort. Here is a short brief of this book:. How to health anxiety, stress, and depression once and for all. What causes a vagus nerve damage?. Self-identification guide - how damaged is your vagus nerve?. Necessary diet changes you have to make for physical and psychological health. How to cure systemic inflammation with diet and lifestyle changes. Much much more... Vagus nerve is a cranial nerve that start from brainstem and passes through neck managing the functions of larynx, pharynx , vocal cords and in the end interfaces with heart, esophagus and stomach. It's a fundamental part of our body and it controls not only the physical aspect but also psychological.