The vagus nerve is the main element of the adaptive nervous system. Polyvagal theory details the structure and function of the distinct dual segments of the vagus, all of which arise in the medulla.


The hypothesis was presented in 1994 byDr. Stephen Porges; The Polyvagal Theory suggests that human beings have physical reactions, such as physiological and digestive changes, correlated to their body language. The divisions of the vagal nerve serve multiple biological stress reactions in mammals.


In essence, the more simplistic branch induces immobilization behaviors (e.g., feigning death), while the more evolved is linked to social communication.
Such functions obey a phylogenetic order, where the more basic structures are enabled only when, the more complex functions malfunction.


Such neural circuits control the autonomic process and the transmission of emotional and social behavior. Therefore, according to this principle, the natural environment determines the expression of action and psychological awareness. The polyvagal hypothesis has a variety of consequences for the study of pain, anxiety, and social behavior.


This book intends to cover all the aspects relating to the vagus nerve and Polyvagal theory. In this comprehensive document,


you will be able to learn:


- A brief introduction of the vagus nerve
- An insight into Polyvagal theory
- How neural pathways regulate the social behaviors and expression of emotions
- How to active our vagus nerve
- Self-help exercise to stimulate the vagus nerve
- Impact of Polyvagal theory on Behavioral diseases


Since the book is written in a manner that a person with no or little knowledge about the medical field can easily understand, the book covers all the aspects of Vagus nerve and provide a comprehensive insight about the Polyvagal theory which a non-specialist can easily understand., I would suggest you give it a read you won't regret.