Did you know you actually have a chill-out button in your back pocket? It’s called the vagus nerve. (And, yes, vagus nerve exercises are a thing.)
“The vagus nerve connects the brain to the body, and its primary function is to activate our parasympathetic nervous system (PNS),” says Erin D’Elia Assenza, a nutrition coach at Parsley Health. There are two branches of the autonomic nervous system or peripheral nervous system (PNS), or “rest and digest” and sympathetic nervous system (SNS), or “fight and flight.”
Of course, it’s not literally located in your back pocket—the vagus nerve runs from the brainstem through the neck and down to your abdomen. Its main function is to regulate digestion and your heart and breathing rate. When it’s activated, it will temper your physiological stress response, allowing a feeling of calm to wash over you. And the good news? There are specific exercises you can do for vagus nerve stimulation. At Parsley Health, we often help women connect these kinds of practices to the bigger picture of stress and hormone health, weaving them into care that looks at the whole person.
What Is The Vagus Nerve?
The vagus nerve plays a powerful role in how the body responds to stress, and how it returns to a state of calm afterward. As the longest cranial nerve, it connects the brainstem to key organs throughout the body, including the heart, lungs, and digestive system. Through these connections, the vagus nerve helps regulate heart rate, breathing, digestion, inflammation, and mood as part of the parasympathetic nervous system, often referred to as the body’s “rest and digest” response.
When the vagus nerve is functioning well, it supports resilience, emotional regulation, and recovery from stress. But chronic stress, illness, inflammation, or ongoing nervous system overload may reduce vagal tone, making it harder for the body to shift out of fight-or-flight mode. This imbalance can show up as anxiety, digestive issues, sleep problems, or feeling constantly “on edge.”
Because of this connection, practices designed to stimulate the vagus nerve have gained attention as tools for supporting nervous system balance. Vagus nerve exercises, sometimes described as a “vagus nerve reset”, aim to gently activate this pathway and encourage a calmer physiological state.



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