Your nervous system is constantly asking one question:
Am I safe, or am I under threat?
One of the most important pathways involved in that conversation is the vagus nerve—the longest cranial nerve in the body and a major component of the parasympathetic nervous system, sometimes described as the body’s “rest and digest” system.
Running from the brainstem through the neck and into the chest and abdomen, the vagus nerve communicates with organs including the heart, lungs and digestive system. Much of the information carried by the vagus travels from the body toward the brain, allowing the brain to receive information about what is happening inside the body.
This constant communication is one reason your breathing, heart rate, digestion and emotional state can influence one another.
What Is Vagus Nerve Activation?
When the parasympathetic nervous system becomes more active, the body can shift away from a prolonged fight-or-flight state and toward rest, recovery and digestion.
Vagal tone is a term used to describe aspects of vagal activity and how effectively the nervous system regulates these processes. While it isn’t simply an on/off switch, certain everyday practices can influence autonomic nervous-system activity and help create conditions associated with relaxation.
Here are six simple practices to explore.
- Practice Slow, Extended-Exhale Breathing
Try breathing in for approximately four seconds and extending your exhale to eight seconds, if comfortable.
Slow breathing—particularly breathing with a longer, relaxed exhalation—can encourage a calmer autonomic state and may increase heart-rate variability.
- Try Cool Water on Your Face
Brief exposure to cold water on the face can stimulate physiological responses associated with the mammalian diving response, which can influence heart rate and autonomic activity.
Keep the exposure brief and comfortable rather than forcing yourself through extreme cold.
- Hum or Sing
Your voice and breathing are closely connected. Humming or singing naturally lengthens the exhalation and creates vibration in the throat and chest.
Try humming quietly for a couple of minutes while breathing slowly.
- Gargle With Water
Gargling engages muscles in the throat and can be another simple breathing-and-vocal exercise. Try it for around 30 seconds and notice how your breathing and body feel afterward.
- Eat Slowly and Mindfully
Digestion works best when you’re not constantly rushing. Put the phone away, slow down and actually experience your meal.
Mindful eating can become a small signal that tells your body: there is no emergency right now.
- Connect With Other People
Human beings are social creatures. Calm conversation, eye contact, laughter and meaningful connection can all influence the nervous system.
Sometimes regulation doesn’t require isolation or another productivity hack.
Sometimes your nervous system simply needs to feel connected.
The Bigger Picture
The vagus nerve isn’t a magical “calm button,” and activating it isn’t a cure for anxiety, illness or chronic stress. But understanding the connection between the brain, body and nervous system gives us another way to work with ourselves rather than constantly fighting ourselves.
Slow down.
Breathe.
Sing.
Eat mindfully.
Connect.
Pay attention.
Your body is constantly communicating with your mind. Learning to listen may be one of the simplest forms of self-awareness.
