vagus nerve

The vagus nerve is a major cranial nerve that originates in the brainstem and extends all the way down to the abdomen.
It is a key component of the parasympathetic nervous system, which controls various involuntary functions in our body, including digestion, heart rate, and immune responses¹.

Digestion: The vagus nerve influences digestive processes.
Heart Rate and Blood Pressure: It regulates heart rate and blood pressure.
Immune System Responses: The vagus nerve affects immune system activity.
Mood: It plays a role in mood regulation.
Saliva and Mucus Production: The vagus nerve contributes to these bodily functions.
Skin and Muscle Sensations: It provides sensory information.
Speech and Taste: The vagus nerve is involved in these aspects.
Urine Output: It even influences urine production¹.

The parasympathetic nervous system is often referred to as the “rest and digest” system, in contrast to the “fight or flight” response of the sympathetic nervous system.
As we age, the vagal response tends to decrease.
Individuals with a strong vagal tone may find it easier to relax after stressful events, and their bodies may better manage inflammation and gut-related issues⁴.

Stimulating the vagus nerve has been associated with anti-aging effects.
By delaying the onset of age-related diseases such as Alzheimer’s disease, Parkinson’s disease, and dementia, vagus nerve stimulation may contribute to overall well-being and longevity².

The vagus nerve’s control over the parasympathetic nervous system seems pivotal in its role related to aging.
While the sympathetic system (associated with stress responses) prepares the body for action, the vagus nerve’s influence on relaxation and homeostasis may contribute to healthier aging.