TL;DR: Interoception is your body’s internal sensing system, and it’s one of the most important, least talked-about drivers of mental health. Trauma disrupts it. But it’s trainable, and recalibrating it can change how you feel, heal, and function.

• Interoception is your ability to sense, interpret, and predict signals from inside your body, like heartbeat, breath, tension, and pain.

• About 80% of vagus nerve fibers carry signals from the body to the brain, not the other way around. Your body leads. Your brain interprets.

• Disrupted interoception is a shared mechanism across many mental health conditions, including anxiety, depression, PTSD, and chronic pain.

• Trauma, especially in childhood, reduces interoceptive accuracy and can cause body dissociation, a state where internal signals feel cut off or threatening.

• Interoceptive awareness is trainable. Research shows improvements reduce pain, opioid misuse, and emotional dysregulation.

Close your eyes. Try to feel your own heartbeat without touching your chest.

Some of you will sense it right away. Others will feel almost nothing. That difference isn’t random. It points to a real human sense most people have never been told about, one that quietly shapes your emotions, your pain, and your mental health every single day.

What Is Interoception?

It’s called interoception: your ability to sense, interpret, and predict what’s happening inside your body. Your heartbeat. Your breath. The tightness in your chest. The knot in your stomach. Your brain is reading those signals every second.

Here’s the part that stopped me when I first studied the anatomy. The vagus nerve is the main highway between your body and your brain. And roughly 80% of its fibers carry information from the body up to the brain, not commands from the brain down to the body [1].

Your body is talking. Your brain is mostly listening.

That single fact reframes how I think about symptoms. Your body sends a running report. Your brain decides what that report means, moment by moment. And if the reporting system is off, everything downstream gets distorted.

Interoception isn’t a passive readout. It’s an interpretation engine. And the interpretation gets rewritten by experience.

Why Interoception Is a Mental Health Issue, Not Just a Body Issue

For a long time, we treated mental health as a matter of thoughts and feelings, and physical health as a matter of tissue and structure. The research on interoception is closing that gap fast.

Interoception is now understood as a core ingredient in memory, decision-making, emotional processing, and your sense of self [2].

Disrupted interoception shows up across a wide range of mental health conditions. Researchers now see it as a shared underlying mechanism, not a side feature of individual diagnoses [3].

The research reflects this shift. Publications on interoception have moved from a slow trickle across seven decades to thousands of papers in just the last few years [4]. The field has reached critical mass. And it’s about time.

How Trauma Disrupts the Body’s Internal Reading System

This is where it gets personal for many of the people I work with.

Trauma doesn’t just leave emotional scars. It changes your ability to feel your own body accurately.

Research shows childhood trauma relates negatively to interoceptive accuracy under stress [5]. The internal communication line gets noisy. In trauma-related conditions, people report lower body awareness and higher body dissociation, a habitual tuning out of internal signals that originally served as protection. Over time, it leaves them cut off from the very information their nervous system needs to regulate [6].

💡 The reframe: Distress often comes from a reading system stuck on high alert, not from the body actually being in danger.

The alarm gets miscalibrated. A neutral sensation gets read as a threat. The nervous system responds as if it’s real, because to your brain, it is.

Why “Just Listen to Your Body” Can Make Things Worse

You’ve probably been told to tune into your body and listen harder. For some people, that helps. For others, it makes things significantly worse. I’ve watched this happen up close.

If your alarm is already overtuned, amplifying body awareness just turns the volume up on threat signals. You feel more. And most of what you feel reads as danger.

The goal isn’t to feel more. The goal is to read more accurately.

That means teaching your system to distinguish a true signal from an old, overlearned one. You hold a sensation as undecided. You pause before judging it. You let context assign the meaning, instead of letting the alarm do it for you.

Can Interoceptive Awareness Be Trained?

Yes. Interoceptive awareness isn’t a fixed trait you either have or don’t. It’s trainable. It has a dial. And the research on what happens when you turn that dial is genuinely encouraging.

Here’s what the evidence shows:

• In people living with chronic pain, higher interoceptive awareness is linked to greater improvement after spinal cord stimulation, including better pain relief and less pain catastrophizing.

• Individuals with chronic pain who misuse opioids report lower interoceptive awareness than those using opioids as prescribed. Mindfulness-based interventions that build interoceptive awareness, such as Mindfulness-Oriented Recovery Enhancement (MORE), show meaningful reductions in opioid misuse over a nine-month follow-up period [8].

Read that again. Improving how accurately you read your body strengthens outcomes from precise medical procedures. It supports safer medication use. This isn’t soft medicine sitting off to the side. It works alongside the biological care you’re already receiving.

Key Point: Interoceptive awareness is trainable, and improving it produces measurable outcomes across pain, mental health, and medication use.

What the Polyvagal Framework Adds to This Picture

Polyvagal-informed work offers a useful map here. Trauma can shift the nervous system into chronic defensive states that impair both emotion regulation and internal body balance.

This helps explain why so many trauma-exposed people develop functional pain conditions like fibromyalgia, irritable bowel syndrome, and chronic pelvic pain [7]. These are real conditions with real biology. They often involve a sensitized nervous system and an internal reading system stuck on alert.

If you’ve been told your symptoms are too complex to explain, this is likely part of what was missing from the conversation.

What This Means for You

Your inner sense is a trainable interpretation system. Mental well-being grows from recalibrating how accurately it reads your body, not from turning the volume up.

A few things I want you to hold onto:

1. Your symptoms are real. The signal is real. The question is whether your system is reading it accurately.

2. A miscalibrated alarm is a protective pattern that outlived its usefulness. Patterns that were learned can be relearned.

3. Progress often looks like a widening capacity to tolerate and interpret sensation, not the total disappearance of discomfort.

⚠️ A note of care: If you’re navigating serious trauma, do this work with a qualified clinician who understands both the body and the mind. Turning inward without support can feel destabilizing, and you deserve to be accompanied.

You’re not broken. Your nervous system has been doing its best to protect you. And it can learn a new way to read the world inside you.

That’s where relief begins. And relief is what lets you get back to living.

Key Takeaways

• Interoception is your body’s internal sense system. It shapes how you feel, think, regulate emotion, and experience pain.

• About 80% of vagus nerve signals travel from body to brain. Your body leads the conversation.

• Disrupted interoception is a shared mechanism across anxiety, depression, PTSD, and chronic pain.

• Childhood trauma reduces interoceptive accuracy and produces body dissociation, a disconnection from internal signals.

• The goal isn’t to feel more. It’s to read your body’s signals more accurately.

• Interoceptive awareness is trainable and produces real improvements in pain outcomes, emotional regulation, and medication safety.

• If you’ve been dismissed as “too complex,” a disrupted interoceptive system is likely part of the missing explanation.

Frequently Asked Questions

What is interoception in simple terms?

Interoception is your ability to sense, interpret, and predict what’s happening inside your body. It includes awareness of your heartbeat, breath, gut sensations, muscle tension, and pain. Your brain uses these signals to generate emotions, decisions, and your sense of self.

How does interoception affect mental health?

Disrupted interoception is a shared underlying mechanism across many mental health conditions, including anxiety, depression, PTSD, and chronic pain. When your body’s internal signals are misread or blocked, your nervous system generates distress responses based on faulty information.

Can trauma damage interoception?

Yes. Childhood trauma is linked to reduced interoceptive accuracy under stress and higher rates of body dissociation. This means trauma survivors often feel cut off from their internal signals, the very signals needed to regulate emotion and calm the nervous system.

What is body dissociation in the context of interoception?

Body dissociation is a habitual tuning out of internal body signals. It develops as a protective response to overwhelming experience. Research identifies it as a key mediator between childhood trauma and emotional dysregulation in adulthood.

Is interoceptive awareness something you’re born with?

No. Interoceptive awareness is trainable. It exists on a dial, not a fixed setting. Mindfulness-based practices, somatic therapies, and trauma-informed interventions have all shown the ability to improve interoceptive accuracy over time.

What does Polyvagal Theory have to do with interoception?

Polyvagal Theory explains how trauma can lock the nervous system into chronic defensive states. These states impair both emotion regulation and interoceptive accuracy, and they help explain why trauma-exposed individuals are more likely to develop functional pain conditions like fibromyalgia and IBS.

Why does “just listening to your body” sometimes backfire?

If your interoceptive system is already overtuned, increasing body awareness amplifies threat signals rather than calming them. The goal isn’t to feel more. It’s to read body signals more accurately, distinguishing real threats from old, protective patterns.

What is Mindfulness-Oriented Recovery Enhancement (MORE)?

MORE is a mindfulness-based intervention that trains interoceptive awareness to help people with chronic pain reduce opioid misuse. Clinical research shows that improving interoceptive awareness through MORE mediates meaningful reductions in opioid misuse over a nine-month period.

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About the Author

Dr. Zev Nevo is a double board-certified physiatrist, chronic pain survivor, and founder of the Body & Mind Pain Center. He helps people with persistent pain rebuild capacity and confidence using an evidence-based, trauma-informed mind-body rehabilitation approach.

🎙️ Listen: Mind Your Body Podcast

📚 Learn & Join: Mind-Body Rehabilitation Community

🏥 Visit the Clinic: Body & Mind Pain Center

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Medical Disclaimer

The information in this article is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this article. New or changing pain symptoms should always be properly evaluated by a medical professional.

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References

1. Craig, A.D. (2002). How do you feel? Interoception: the sense of the physiological condition of the body. Nature Reviews Neuroscience, 3(8), 655–666. https://doi.org/10.1038/nrn894

2. Greenwood, B.M., & Garfinkel, S.N. (2025). Interoceptive mechanisms and emotional processing. Annual Review of Psychology, 76, 59–86. https://doi.org/10.1146/annurev-psych-020924-125202

3. Hickman, L.J., Mackie, G., Longley, B.F., et al. (2025). Breaking through the mind-body divide: patient priorities for interoception research. eClinicalMedicine. https://doi.org/10.1016/j.eclinm.2025.103183

4. Petzschner, F.H., et al. (2025). Toward a multidisciplinary neurobiology of interoception and mental health. Current Opinion in Neurobiology. https://doi.org/10.1016/j.conb.2025.102991

5. Bornemann, B., & Bremer, B. (2019). Childhood trauma affects stress-related interoceptive accuracy. Frontiers in Psychiatry, 10, 750. https://doi.org/10.3389/fpsyt.2019.00750

6. Schmitz, M., et al. (2023). The impact of traumatic childhood experiences on interoception: disregarding one’s own body. European Journal of Psychotraumatology, 14(1). https://doi.org/10.1080/20008066.2022.2163726

7. Coussens, M.A., et al. (2025). Autonomic dysregulation mediates the association between childhood trauma and pain severity: evidence from a mediation model. PMC12470192. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470192/

8. Garland, E.L., et al. (2025). Enhancing interoceptive awareness in chronic pain and opioid misuse via Mindfulness-Oriented Recovery Enhancement. Drug and Alcohol Dependence. https://doi.org/10.1016/j.drugalcdep.2025.112349

9. Murray, H., et al. (2024). A roadmap to understanding interoceptive awareness and post-traumatic stress disorder: a scoping review. Frontiers in Psychiatry, 15. https://doi.org/10.3389/fpsyt.2024.1355442

10. Chen, W.G., et al. (2021). The emerging science of interoception: sensing, integrating, interpreting, and regulating signals within the self. Trends in Neurosciences, 44(1), 3–16. https://doi.org/10.1016/j.tins.2020.10.007