The Vagus Nerve: The Conductor of the Human Body
- Advertising Marketing
- Apr 1
- 2 min read
There is a nerve—the longest in our body—that travels through most of our system. Scientists claim it is deeply connected to our emotions and holds the key to our overall well-being.
What is the Vagus Nerve?
The name of the vagus nerve comes from the Latin nervus vagus. "Its root means 'to wander,' and it truly describes the way it wanders through the body, just like a wanderer," explained psychologist Kimberley Wilson.
The Anatomy of the "Wanderer"
The vagus nerve is divided into two: one that runs down the right side and another down the left side of the human body. It originates in the brainstem—roughly behind the ears—and extends down each side of the neck, crosses the chest, and reaches the abdomen.
The Body's Internal Highway
The vagus nerve connects the brainstem to almost every organ in the body: the heart, lungs, stomach, intestines, pancreas, liver, kidneys, spleen, and gallbladder. It moves through nearly every essential organ. Specialists compare it to a massive, critical highway or a transatlantic telephone cable containing thousands upon thousands of fibers.
"80% of those cables are sensors, meaning that the vagus nerve, throughout its entire length, is reporting what is happening in all the organs of the body back to the brain," described Kevin Tracey, president of the Feinstein Institute in New York and a pioneer in the study of this nerve.
The Master Switch for Relaxation
Scientifically speaking, the vagus nerve is the primary component of the parasympathetic nervous system, which controls our body's involuntary functions and actions. "You have your sympathetic nervous system—the part that prepares you for action—while the parasympathetic nervous system can be thought of as the 'off switch' for that," explained Wilson.
"Therefore, the vagus nerve helps shift the body into mode for rest, relaxation, recovery, and the regulation of your heart rate and breathing—basically all the fun things you need to live," she added.
Impact on Mind and Soul
Since the vagus nerve is a communication pathway with sensors sending signals from the body to the brain, it can have a direct impact on our minds, our thoughts, and perhaps even our feelings.
For more detailed and professional information, you can consult Mayo Clinic's guide on vagus nerve stimulation.