Vagal tone refers to the health and responsiveness of your vagus nerve, the major highway of your parasympathetic nervous system. Think of it as your physiological capacity to calm down, to shift from fight-or-flight back to rest-and-digest.
When vagal tone is high, you recover quickly from stress. Your heart rate slows, your breathing deepens, your digestion activates. You might get upset, but you do not stay upset. Your system knows how to find its way back to baseline.
When vagal tone is low, you get stuck in sympathetic activation. Stress responses linger. You feel anxious long after the threat has passed. Your body stays wired even when your mind knows you are safe. Recovery takes hours or days instead of minutes.
Vagal tone develops through repeated experiences of safety, especially in early childhood when your nervous system was forming. Infants who were consistently soothed develop stronger vagal tone. Those whose distress was ignored or punished develop compromised vagal capacity.
The good news is vagal tone can be improved. Practices like slow breathing, humming, cold water on the face, and social connection all stimulate the vagus nerve. Over time, these practices strengthen your physiological capacity to regulate.
This is not about controlling your nervous system, it is about supporting it. You cannot force calm, but you can create conditions that allow your innate capacity for calm to emerge. Higher vagal tone means more resilience, better health, and greater capacity for joy.
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Start Your Nervous System Reset →About the Author
Robert Greene is the author and founder of Unfiltered Wisdom, a US Navy veteran, and a trauma survivor with over 10 years of experience in nervous system regulation and somatic healing. He is certified in Yoga for Meditation from the Yogic School of Mystic Arts (Dharamsala, India, 2016) and affiliated with Holistic Veterans, a 501(c)(3) nonprofit serving veterans in Santa Cruz, California.
References
Content informed by trauma research, polyvagal theory (Stephen Porges), somatic experiencing (Peter Levine), and nervous system regulation studies. For comprehensive citations and further reading, see Unfiltered Wisdom: The Book.
Robert Greene
Author, Founder, Navy Veteran & Trauma Survivor
Robert Greene is a writer and strategist focused on human behavior, relationships, and personal development. Drawing from lived experience, global travel, and diverse perspectives, he explores the patterns driving how people think, connect, and self-sabotage. His work challenges conventional narratives around mental health, modern relationships, and personal growth. Because awareness is where real change begins.