{"id":3635,"date":"2025-01-04T17:28:39","date_gmt":"2025-01-04T17:28:39","guid":{"rendered":"https:\/\/integrativa.pt\/?p=3635"},"modified":"2026-04-20T14:49:31","modified_gmt":"2026-04-20T14:49:31","slug":"the-vagus-nerve-the-silent-guardian-of-the-human-body-and-well-being","status":"publish","type":"post","link":"https:\/\/integrativa.pt\/en\/nervo-vago-o-guardiao-silencioso-do-corpo-humano-e-do-bem-estar\/","title":{"rendered":"The vagus nerve: the silent guardian of the human body and well-being"},"content":{"rendered":"
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David Brand\u00e3o<\/strong> Is a Physiotherapist (License 3652 | Order of Physiotherapists) and Osteopath (License C-0031697 | ACSS), specialising in Clinical Psychoneuroimmunology. He practices at Integrativa, where he supports individuals with issues related to nervous system regulation, chronic pain, and functional imbalances.<\/h6>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>
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The vagus nerve is one of the body's main regulators. When its function is altered, symptoms such as anxiety, digestive problems, fatigue, or difficulty coping with stress can arise.<\/p>\n

The human body functions through a constant interaction between different physiological systems, with the aim of maintaining internal balance (homeostasis). In this context, the vagus nerve, also known as the pneumogastric nerve, plays a fundamental role in communication between the brain and organs such as the heart, lungs, and intestines.<\/p>\n

Integrated into the autonomic nervous system, the vagus nerve regulates essential involuntary functions such as heart rate, digestion, breathing, and the stress response (Porges, 2007). Despite its importance, it continues to be frequently undervalued in approaches to health and well-being.<\/p>\n

In this article, we explain what the vagus nerve is, its main functions, the signs of dysfunction, and how osteopathy can contribute to its regulation from an integrative perspective.<\/p>\n

What is the vagus nerve?<\/h4>\n

The vagus nerve is one of the main nerves of the autonomic nervous system, responsible for regulating functions such as digestion, heart rate, and stress response.<\/p>\n

The vagus nerve is the tenth of the twelve cranial nerves, originating in the brainstem (an area of the brain responsible for vital functions) and running to a vast network of organs, such as the heart, lungs, stomach, intestines, and throat. The vagus nerve is the longest nerve in the autonomic nervous system, which regulates involuntary bodily functions, such as digestion, heart rate, breathing, and the response to stress<\/em> (Thayer & Lane, 2000).<\/p>\n

This nerve divides into two main branches: the right vagus nerve and the left vagus nerve, which follow the right and left sides of the body, respectively. The vagus nerve is a fundamental component of the parasympathetic nervous system, which regulates \u201crest and digest\u201d processes, in contrast to the sympathetic nervous system, which prepares the body for \u201cfight or flight\u201d situations (Porges, 2007).<\/p>\n

Functions of the Vagus Nerve<\/h4>\n

The vagus nerve has several essential functions for maintaining the internal balance of the body (homeostasis). The main functions attributed to the vagus nerve include:<\/p>\n