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Inspiration: Episode #26: Grief and Pain (Part I) – When Grief Meets Pain of the Mind Your Body podcast with Dr. Nevo.

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TL;DR: Losing someone you love doesn’t just hurt emotionally. It physically amplifies chronic pain by disrupting stress hormones, flooding the body with inflammation, and stripping away a biological source of natural pain relief. This is neuroscience, not weakness.

• Grief dysregulates the HPA axis (your body’s stress hormone system), flattening cortisol rhythm and raising pain sensitivity.

• Bereaved people with high grief symptoms show a 19% greater rise in the inflammatory marker IL-6 under stress, directly amplifying pain signals [1].

• The brain’s reward center (nucleus accumbens) stays activated in grief, creating a neurobiological craving for the lost person that mirrors addiction and withdrawal [2].

• Losing a loved one removes a powerful source of natural pain relief: the oxytocin and endogenous opioids released through physical and emotional connection.

• Chronic pain and grief share an existential core. Both involve identity loss and the need to relearn the world [4].

A few months ago, a patient came back to my office. She had lived with chronic low back pain for six years. She knew her triggers. She’d built a life around working with them. Her pain sat at a four out of ten, most days.

Then her husband died suddenly. He was fifty-three.

Six weeks later, she sat across from me. Same back. Same diagnosis. Same MRI. Her pain was a nine. She couldn’t sleep. She couldn’t work. She said, “I feel like my body is falling apart.”

Her body was intact. Her nervous system was grieving.

If you’ve lost someone you love and your pain got louder, I want you to understand what happened inside your body. Your body did exactly what bodies do when the world falls apart. The science behind that deserves a full explanation. That’s what this article is for.

Why Does Grief Amplify Chronic Pain?

Here’s a scenario I see regularly. Someone has managed chronic pain for years. They have good weeks and hard weeks, and they know the difference. Then they lose a parent, a spouse, a child, or a close friend.

Within weeks, the pain doubles. The tools that used to work stop working. The person concludes they must be doing something wrong.

They’re doing nothing wrong. Their nervous system has changed. Understanding how it changed restores agency. So let me walk you through the mechanisms, one layer at a time.

How Grief Disrupts Your Stress Hormone System (HPA Axis)

Your body runs a stress management system called the HPA axis, short for hypothalamus, pituitary, adrenal. When you’re healthy, this system has a rhythm. Cortisol, your primary stress hormone, peaks in the morning to help you wake up and tapers down at night so you sleep.

In people with complicated or prolonged grief, this rhythm flattens. The morning peak blunts. The nighttime dip disappears. The whole system gets stuck in a fog.

When cortisol loses its rhythm, everything downstream loses rhythm with it:

• Your immune system

• Your pain sensitivity

• Your sleep

• Your digestion

How Inflammation Amplifies Pain During Grief

In 2022, Brown and colleagues studied 111 recently bereaved spouses. They measured interleukin-6 (IL-6), one of the body’s core inflammatory signals, comparing people with high grief symptoms to those with lower grief symptoms [1].

People with high grief showed a 19% greater rise in IL-6 in response to stress. This effect was specific to grief, independent of depression [1].

This matters because pain and inflammation share the same nervous system real estate. Inflammatory cytokines like IL-6 sensitize the nerves that report to your brain. When grief drives IL-6 up, pain goes up with it.

Key Point: Grief doesn’t just feel bad. It chemically increases pain sensitivity through a measurable inflammatory cascade.

Why Your Brain Treats Grief Like Addiction

In 2008, Mary Frances O’Connor and her team at UCLA ran fMRI studies on grieving people. They showed participants photos of the person they’d lost alongside photos of strangers. A brain region no one anticipated lit up [2].

The nucleus accumbens. Your brain’s reward center. The region that fires when you see something you want, tied to dopamine, oxytocin, and endogenous opioids, your body’s own natural pain relievers.

In grieving people, seeing the deceased activated the reward system [2]. The brain reaches for the person it lost. It scans the room. Searches the crowd. Listens for their voice. When that person doesn’t come back, the reward system stays activated, unresolved, and searching.

Neurobiologically, grief resembles addiction and withdrawal happening at the same time.

How Losing a Person Removes a Natural Pain Reliever

Here’s the piece that ties everything back to pain. Your endogenous opioid system, the machinery your brain uses to dampen pain naturally, connects deeply to your bonding chemistry. When someone you love holds you, your brain releases oxytocin and opioids that reduce pain sensitivity.

When you lose that person, you lose that regulatory input. Your natural pain-relieving system loses one of its most powerful anchors.

That’s biology. When a patient comes to me with an unchanged scan and doubled pain after a loss, no new MRI will explain it. The tissue stayed the same. The nervous system changed.

Key Point: Grief removes a biological source of pain relief. The absence of a loved one isn’t only an emotional wound. It’s a neurochemical one.

What Is Allostatic Load, and Why Does It Make Pain Worse?

Bruce McEwen, one of the great researchers in stress physiology, described a concept called allostatic load [3]. Your body carries a certain amount of adaptive capacity. Every stressor, a hard workout, poor sleep, a chronic illness, an emotional loss, draws from that reserve. Then your body rebuilds. Stress, recovery, stress, recovery. That’s the rhythm of a healthy nervous system.

When stressors keep arriving and recovery never fully happens, the wear and tear accumulates.

Someone living with chronic pain already carries a heavy load. Their pain system fires daily. Sleep is fragmented. Inflammation runs elevated. The reserve is already thin.

Then grief arrives.

Picture a computer running too many programs. The fan spins. The processor runs hot. The system slows. Then someone opens another twenty windows. That’s what grief does to a nervous system already fighting chronic pain. The pain, already the loudest program, gets louder because the brain has less capacity to modulate it and less capacity to tell the body it’s safe.

Key Point: Chronic pain depletes the nervous system’s reserves. Grief exhausts what’s left. The result is a system that’s lost its ability to turn the volume down.

The Existential Layer: How Grief and Pain Both Force You to Relearn the World

Both chronic pain and grief reshape identity. If you’ve lived with chronic pain, you know this. You used to be the person who ran marathons, lifted your kids without thinking, worked long hours without consequence. Then pain arrived, and the person in the mirror became unfamiliar.

Grief works the same way. You used to be a daughter. Now you’re a daughter without a mother. You used to be a spouse. Now you’re a widow.

A 2026 paper in Medicine, Health Care and Philosophy made an observation I find profound. Chronic pain and grief share a common existential core. Both involve losing life possibilities. Both involve losing your future self. Both involve what the authors called relearning the world [4].

When you’re grieving, you’re relearning a world that no longer contains the person you loved. When you’re in chronic pain, you’re relearning a world that no longer contains the body you had. When both happen at once, you’re relearning everything, all at once.

Picture two storms. The pain storm has rolled through your life for years, and you’ve built shelters. Then the grief storm arrives from the other direction, with its own force and its own weather. You’re standing where they meet. That experience lives in your biology and your neuroscience. You deserve to have it named.

Key Point: When chronic pain and grief arrive together, they don’t just add to each other. They compound, because they target the same sense of self.

Three Practices You Can Start This Week

Grief that stays in the head doesn’t move. It needs to be witnessed, named, and moved through the body. These three practices come directly from my clinical work. Pick the one that resonates and start there.

1. Stabilize the Nervous System First

You can’t process grief in a body that’s in crisis. Stabilization comes before processing. Here’s what that looks like:

• Coherence breathing. I use the HeartMath approach with many patients. Breathe slowly and rhythmically, focused on the area of the heart, about five seconds in and five seconds out. This raises heart rate variability and gently signals the brain that the body is safe in this one breath, and then the next.

• Somatic movement. Ten minutes of gentle walking or stretching in bed before you get up. The goal is reminding the body that movement is safe.

• Grief-adapted sleep. Waking at three in the morning after a loss means your nervous system is searching for the person who’s gone. Fighting it makes it worse. A gentle re-entry helps: warm water, a cool room, a weighted blanket, sometimes a body pillow, because the body remembers who used to sleep next to it.

💡 The readiness marker I use with patients: You can observe your feelings without being consumed by them. The wave still comes, and you can watch it arrive and pass. That’s where processing becomes possible.

2. The Stenographer Practice: Observing the Wave

When a grief wave comes, your job is to observe it like a stenographer taking notes in a courtroom. Locate it in your body. The chest, the throat, the gut. Note its texture. Sharp, heavy, hot, hollow. Track whether it moves or stays.

You’re the witness. In the nervous system, this brings the prefrontal cortex, the observing part of the brain, online while the amygdala, the alarm center, quiets. You still feel the grief fully, with less risk of being swept away by it. Start with small waves. Over time, you’ll build capacity for bigger ones.

3. Be Witnessed by Someone Safe

Grief shrinks in the presence of someone who says, “I see what you lost.” We’re wired for co-regulation. When a safe person holds us, physically or emotionally, the vagus nerve responds, heart rate variability improves, cortisol drops, and inflammatory markers settle.

Community and witnessing are nervous system medicine. Find one safe person and let them see what you’ve lost, without performing or tidying it up. If you don’t have that person right now, grief groups, chronic pain communities, faith communities, and carefully held online spaces exist for exactly this. You were never meant to carry this alone.

Key Point: These three practices work at the level of the nervous system. They’re not about pushing through grief. They’re about creating enough safety that the body can begin to process it.

A Personal Note

Before we close, I want you to know something. In the past two months, I lost my father. Nine days later, I lost my four-year-old daughter.

I’m sharing that because I can’t write about grief and pain without telling you I know what this feels like from inside my own body, not from a textbook. I’m doing the work I’m asking you to do. I’m stabilizing my nervous system, observing the waves, letting people witness me. Some days it works. Some days it doesn’t. That’s the process.

Pick one of the three practices. The one that landed while you read it. That’s the one your body is asking for.

Be gentle with your body this week. Be gentle with your losses. Be gentle with yourself.

Frequently Asked Questions

Why does my chronic pain get worse after losing a loved one?
Grief disrupts your HPA axis (stress hormone system), raises inflammatory markers like IL-6, and removes the natural pain-regulating chemistry tied to close relationships. The result is a nervous system with less capacity to dampen pain signals.

Is the pain increase after grief “in my head”?
No. The pain is 100% real and biologically driven. Research shows measurable inflammatory and neurochemical changes in bereaved people. An unchanged MRI doesn’t mean unchanged pain. The tissue stayed the same. The nervous system changed.

How long does grief-amplified pain last?
It varies depending on grief severity, existing pain burden, and nervous system support. The key is not to wait it out passively. Active nervous system stabilization, social co-regulation, and somatic practices can shorten the arc.

What is the nucleus accumbens, and why does it matter in grief?
The nucleus accumbens is the brain’s reward center. In prolonged grief, it activates when you see reminders of the deceased, creating a craving-like state. Because this region is tied to endogenous opioids, its dysregulation directly affects how much pain your body feels.

What is allostatic load, and how does it relate to chronic pain?
Allostatic load is the cumulative wear and tear on the nervous system from repeated, unresolved stress. People with chronic pain already have a depleted reserve. Grief adds a massive additional burden, reducing the nervous system’s ability to modulate pain.

What does “co-regulation” mean, and why does it help pain?
Co-regulation is the physiological calming that occurs when you’re in the presence of a safe, attuned person. It activates the vagus nerve, improves heart rate variability, lowers cortisol, and reduces inflammatory markers, all of which reduce pain sensitivity.

What is the Stenographer Practice?
It’s an observational technique for grief waves. You locate the feeling in the body, describe its texture, and track whether it moves. By activating the prefrontal cortex (the observer), it quiets the amygdala (the alarm) and reduces the risk of being overwhelmed by the emotion.

Can I use coherence breathing for grief-related pain?
Yes. The HeartMath coherence breathing approach (five seconds in, five seconds out, focused on the heart area) raises heart rate variability and signals safety to the nervous system. It’s one of the most accessible stabilization tools during acute grief.

Key Takeaways

• Grief is a physiological event, not just an emotional one. It changes the nervous system in measurable, documented ways.

• The HPA axis disruption caused by grief flattens cortisol rhythm and raises pain sensitivity across multiple body systems.

• Bereaved people with high grief symptoms show a 19% greater inflammatory response to stress, directly amplifying pain [1].

• The brain’s reward system stays activated in grief, neurobiologically resembling addiction and withdrawal, while stripping away a key source of natural pain relief [2].

• Chronic pain and grief compound each other because both deplete allostatic reserves and both attack identity at the same time [3].

• Recovery starts with nervous system stabilization, not grief processing. You need to create safety before you can hold the loss.

• Being witnessed by a safe person is nervous system medicine. Co-regulation lowers cortisol, reduces inflammation, and rebuilds the sense of safety the body needs to heal [4].

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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

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] Brown, R. L., LeRoy, A. S., Chen, M. A., Suchting, R., Jaremka, L. M., Liu, J., Heijnen, C., & Fagundes, C. P. (2022). Grief symptoms promote inflammation during acute stress among bereaved spouses. Psychological Science, 33(6), 859–873. https://doi.org/10.1177/09567976211059502

[2] O’Connor, M. F., Wellisch, D. K., Stanton, A. L., Eisenberger, N. I., Irwin, M. R., & Lieberman, M. D. (2008). Craving love? Enduring grief activates brain’s reward center. NeuroImage, 42(3), 969–972. https://doi.org/10.1016/j.neuroimage.2008.04.256

[3] McEwen, B. S. (1998). Protective and damaging effects of stress mediators. New England Journal of Medicine, 338(3), 171–179. https://doi.org/10.1038/1395453

[4] McCarroll, C. J., Lin, Y.-T., Koesling, D., & Bozzaro, C. (2026). Chronic pain and unrecognized grief: Epistemic barriers to personal and social recognition. Medicine, Health Care and Philosophy, 29(2), 371–382. https://doi.org/10.1007/s11019-026-10333-7