Photo by Caleb Woods on Unsplash
Quick Summary
- The Clancy case got me thinking about something most people don't connect - what childhood trauma and violence actually do to the developing body and brain long-term, and the research on this is genuinely wild.
- Your ACE score, chronic inflammation, and nervous system dysregulation are all linked in ways that explain a lot of adult health problems that doctors often treat without ever asking about your childhood.
- There are real things that help - somatic therapy, vagal toning, trauma-informed movement - and some stuff that gets overhyped, and knowing the difference can save you years of spinning your wheels.
I remember sitting in my therapist's office about four years ago, finally starting to unpack some stuff from my own childhood that I'd been carrying around for decades without even realizing it. She handed me this worksheet about something called ACEs - Adverse Childhood Experiences - and honestly I just stared at it. I had seven out of ten. Seven. And suddenly so many things about my adult health made a terrible kind of sense. The chronic inflammation. The anxiety that I'd just assumed was personality. The way my nervous system seemed permanently set to high alert.
When I saw the news about the Clancy children this week, I had to step away from my phone for a while. Cases like this are devastating on every level, and I'm not here to sensationalize anything or pretend I have some unique insight into what happened. But what I kept thinking about, the thing I couldn't shake, was what the research actually says about children who survive violent environments or traumatic loss. Because the health consequences are real, they are long, and they deserve to be talked about plainly. A lot of people reading this might have their own version of a hard childhood. And a lot of you might not have connected those dots yet.
So this is what I want to dig into today. Not the crime itself, but the science of what trauma does to a developing body and brain, and what you can actually do about it if this resonates with you. Because I spent thirty-something years not knowing any of this, and I genuinely wish someone had just laid it out.
What ACEs Actually Are and Why They Matter
The ACE study is one of those pieces of research that should be way more famous than it is. It started in the late 1990s, run by Kaiser Permanente and the CDC, and it looked at over seventeen thousand adults and asked them about their childhoods. Abuse. Neglect. Household dysfunction. Witnessing violence. Then it tracked their health outcomes.
The results were genuinely shocking to researchers at the time. Here's the thing - the higher your ACE score, the dramatically higher your risk for heart disease, cancer, diabetes, depression, autoimmune conditions, addiction, you name it. We're not talking small statistical bumps. We're talking two, three, four times the risk in some categories.
And it's not just mental health. That's the part people miss. Childhood trauma literally changes how your body develops. It alters gene expression. It reshapes your immune system. It messes with your HPA axis, which is basically your stress response headquarters. Sound familiar? If you grew up in a chaotic or violent or unpredictable environment, your body adapted to survive that. And those adaptations stick around long after you've left.
The ten ACEs in the original study are: physical abuse, emotional abuse, sexual abuse, physical neglect, emotional neglect, witnessing domestic violence, having a household member with substance abuse issues, mental illness in the household, parental separation or divorce, and having a household member who was incarcerated. You can take the quiz online in about two minutes. I'll warn you though - seeing your number written down is a lot.
What Childhood Trauma Does To Your Body Long-Term
Okay so let's get into the actual biology because this is the part that changed how I understood my own health completely.
When a child experiences repeated stress or trauma, the body floods with cortisol and adrenaline over and over again. In small doses that's fine, that's what stress hormones are for. But chronic exposure during development - when your brain is literally still being built - causes structural changes. The amygdala, which processes fear and threat, can become overdeveloped. The prefrontal cortex, which handles reasoning and emotional regulation, can be underdeveloped. This isn't a personality flaw. It is a physiological outcome of what the body did to keep you alive.
What does that look like in adult health? Honestly it looks like a lot of things that doctors often treat in isolation without ever asking why. Chronic pain. Persistent fatigue. IBS and gut problems, because your enteric nervous system is deeply connected to your stress response. Autoimmune flares. Difficulty sleeping that doesn't respond to normal sleep hygiene advice. Migraines. Fibromyalgia. Obesity in some cases, because the stress-cortisol-appetite cycle is real and brutal.
I spent years treating symptoms one by one and getting nowhere fast. It wasn't until someone finally asked me about my childhood that pieces started connecting. Was I surprised? Kind of. I thought I'd moved on. Turns out your body keeps score whether you think you've moved on or not. That phrase became a book title for a reason.
The inflammation angle is particularly important right now given how much we've learned about it. Childhood trauma is associated with chronically elevated inflammatory markers into adulthood. And chronic low-grade inflammation is basically the common thread running through most modern chronic disease. Heart disease. Alzheimer's. Type 2 diabetes. Cancer. Your immune system, recalibrated by early stress, can stay in a kind of permanent low-level threat mode for decades.
Your Nervous System After Trauma: Why You Feel The Way You Feel
This section is the one I wish I'd read at twenty-five instead of forty-one.
Polyvagal theory, developed by Dr. Stephen Porges, has genuinely helped me understand my own nervous system in a way that felt like turning on a light in a dark room. The basic idea is that your autonomic nervous system has three main states: safe and social, fight or flight, and shutdown or freeze. Trauma survivors, especially those who experienced chronic childhood trauma, often get stuck cycling between fight-or-flight and freeze without spending much time in that regulated safe state.
Have you ever just felt exhausted for no clear reason? Or found yourself snapping at people you love over small things? Or going completely numb and dissociated when stress hits? That is your nervous system doing what it learned to do. It's not weakness. It's not a character flaw. It's a trained response.
The vagus nerve is central to all of this. It's the longest nerve in your body, running from your brainstem down through your heart, lungs, and gut. When it's well-regulated, you feel calm, connected, able to handle stress. When it's chronically dysregulated, everything feels harder. Digestion is worse. Sleep is worse. Your capacity for connection feels depleted. This is why so many trauma survivors struggle with relationships - the nervous system that was wired in childhood for vigilance and self-protection doesn't easily switch into the safety needed for genuine intimacy.
What Actually Helps (And What's Overhyped)
Alright, this is where I try to be honest with you even when the honest answer is more complicated than I'd like.
Talk therapy alone is often not enough. I said what I said. I did talk therapy for years and it helped me understand my history but it didn't do much for the physical symptoms. The reason, which I now understand, is that trauma is stored in the body and in the nervous system, not just in conscious narrative memory. You can intellectualize your way through your past without ever actually shifting out of the dysregulated state your body is stuck in.
What has genuinely helped me, and what the research increasingly supports:
Somatic therapies. EMDR. Somatic Experiencing. These approaches work with the body and nervous system directly rather than purely through verbal processing. I was skeptical. Very skeptical. And then I had sessions where I felt things shift in ways that years of talking hadn't touched. Not magic. Just different tools for a different part of the problem.
Vagal toning practices. This sounds extremely woo and I get that. But the research on things like humming, cold water exposure, extended exhale breathing, and even singing in groups is genuinely solid. These are ways of directly stimulating the vagus nerve and building regulation over time. I do box breathing every single morning. Five minutes. It's not exciting. It works.
Movement that isn't punishing. The fitness world has a real problem with trauma survivors because so much of gym culture is about pushing through, overriding your body's signals, using exercise as punishment. Yoga, specifically trauma-sensitive yoga, has more evidence behind it for trauma than most people realize. So does dance. So does walking in nature. The key is movement that brings you back into your body rather than allowing you to dissociate further from it.
Community and co-regulation. Here's something kind of beautiful and also kind of hard: nervous systems regulate each other. Being in the presence of a regulated, calm person literally helps your nervous system settle. This is why isolation is so devastating for trauma survivors and why genuine community has therapeutic value that no supplement can replicate.
What's overrated in my experience: supplements marketed specifically for trauma and stress without addressing the underlying nervous system patterns. Positive thinking without somatic work. Journaling as a standalone intervention for complex trauma. These things might have supporting roles but none of them are going to get you there alone.
How To Start If You Don't Know Where To Begin
Look, I know this can all feel overwhelming. Especially if you're reading this and recognizing yourself in it for the first time.
Start with the ACE quiz. Just know your number. Knowledge is not the same as destiny - that's the most important thing the research also shows. Protective factors matter enormously. Supportive relationships, access to therapy, community, even a single trusted adult during childhood can significantly buffer the health impact of high ACE scores. You are not your score. But knowing it helps you understand what you're working with.
Then find a therapist who specifically understands trauma. Not just any therapist. Ask them directly: do you work with complex trauma, do you use somatic approaches or EMDR, are you familiar with polyvagal theory. The difference between a trauma-informed therapist and a general one is genuinely significant.
And be patient with yourself. I know that's frustrating to hear. But I'm four years into this work and I still have hard weeks. What I don't have anymore is a body that I feel completely disconnected from, or a nervous system that I have zero understanding of. Progress looks different than I thought it would. It usually does.
If any of this landed for you today, or if you have your own experience with understanding how childhood stress has shown up in your adult health, I really want to hear from you in the comments. These conversations matter. They're part of how we all figure this out together.
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