The vagus nerve, a small yet vital part of our nervous system, has been gaining significant attention in recent years. Once considered an unimportant nerve, it is now the focus of researchers like Kevin J Tracey, who believe that stimulating this nerve can have a profound impact on our health.
In his book “The Great Nerve: The New Science of the Vagus Nerve and How to Harness Its Healing Reflexes”, Tracey explores the history of the vagus nerve, its recent research, and various methods for stimulating it. He argues that electrical stimulation through devices implanted in the neck or ear, or other non-invasive methods such as cold exposure, meditation, and exercise, can have a significant impact on our health.
However, the book also acknowledges that more research is needed to fully understand the benefits of vagus nerve stimulation. Clinical trials are ongoing, but so far, there is limited scientific evidence to support its effectiveness in treating conditions such as epilepsy, depression, and autoimmune diseases.
Despite these limitations, Tracey shares his own experiences with VNS, including how it has improved his physical and mental well-being. He also highlights three inspiring case histories of people whose lives have been transformed by vagus nerve stimulation.
While some critics may view the book’s tone as self-congratulatory and hyperbolic, its core message is one of hope for a new approach to health treatment. As the field continues to evolve, it remains to be seen whether VNS will live up to its promises or prove to be another unfulfilled medical panacea.
Henry Marsh, a former neurosurgeon and author of “Do No Harm”, has written a review of Tracey’s book, which is included in this issue. As a seasoned medical professional, Marsh offers a balanced perspective on the potential benefits and limitations of vagus nerve stimulation, serving as a reminder that only time will tell if VNS truly lives up to its hype.
Source: https://www.newstatesman.com/culture/books/book-of-the-day/2025/05/the-vagus-nerve-industry