Certified for Excellence

The Biology of Trauma: How Unresolved Past Experiences Fuel Present Cravings

Sad Man with a Drink Sits near Window

It can be confusing, especially in early recovery.

Someone stops drinking and using. They start doing what they are told will help: therapy, meetings, routine, structure. Their life starts to improve.

Then, out of seemingly nowhere, the cravings hit. These aren’t small ones either. They feel physically urgent and totally disproportionate to what’s actually happening at the moment. They make no sense.

Nothing is wrong. There is no crisis, and they can’t pinpoint any trigger.

So, what is happening?

It doesn’t feel like a thought you can reason with. It feels like something your body has already decided.

This is the point where many people begin to question themselves. They question their commitment, wonder if their progress is even real, and wonder if they have the ability to recover at all.

Cravings don’t always come from where people think they do.

Often they come from the body.

Cravings are not just psychological

There’s this belief that cravings are about desire or a lack of discipline. That if someone wants to recover badly enough, they should be able to override the urge. But that’s just not how it works.

Cravings are not thoughts. They are psychological responses shaped by the nervous system. When someone has experienced trauma, whether it’s acute, repeated, or subtle but persistent, the body adapts to that. It learns how to stay alert and anticipate danger. It learns how to respond quickly.

That adaptation is all about protection. The problem is that it doesn’t always switch off when the threat is gone. Instead, the nervous system can remain on high alert, scanning for something to react to. Small stressors can feel big. Being still and quiet can feel unsafe.

The body is trying to figure out how to regulate that discomfort, and that is where cravings come in.

We’re here to help.

Contact us today for a no-obligation conversation with one of our professionals.

The nervous system doesn’t forget

woman sitting alone with hands held together tightly, concept of nervousness, anxiety

Trauma is something that is stored in the body. Research has shown that traumatic experiences can alter how the brain and body respond to stress, specifically in the brain’s amygdala, which detects threat and the prefrontal cortex, which helps regulate responses (Kredlow et. al., 2022).

If the system is dysregulated, the body reacts as if something is wrong, even when there’s nothing actually happening. This can show up as restlessness, irritability, emotional numbness, or a vague sense that something is off.

It feels like the present, and it is intense. As a physician and trauma specialist, Gabor Maté has written that addiction is less about seeking pleasure and more about seeking relief from pain. He talks about how pain is at the root of all addictions.

This distinction matters because it changes the question from “Why would I want this?” to “What am I trying to escape or regulate right now?”

Relief is not the same as peace

Things get complicated with this distinction. Substances and addictive behaviours work because they provide relief. They change the body’s state quickly. For someone with an activated nervous system, that relief can feel like the closest thing to calm they’ve experienced. So the brain learns.

It associates the substance or behaviour with regulation and safety. That relief is short-lived, though. What often follows is a return to the same baseline, and sometimes it’s even more intense than before. The body doesn’t forget the relief.

When the discomfort comes back (and it will), the cravings come with it. This is a classic example of conditioning and can show up in really ordinary ways.

Someone has a stressful day, but nothing extreme. They don’t even realise how activated they are. Then a thought seemingly comes out of nowhere: A drink or drug would take the edge off.

Because this has worked before, even temporarily, the brain reaches for it again. No, it’s not logical but it’s automatic.

Why willpower isn’t enough

Recovery efforts start to break down when you think that willpower is all you need. If cravings were purely cognitive, willpower could work (sometimes). People could talk themselves out of them, reason through them, and override them.

But cravings live in the body. They show up as tension, urgency, and restlessness, and they are impossible to ignore. Trying to think one’s way out of a physiological state just won’t work. This is why someone can become fully committed to recovery and still feel pushed back toward old behaviours.

It’s a mismatch between what the mind knows and what the body is experiencing. As van der Kolk (2014) explains, the body keeps responding long after the trauma itself has passed. Until those responses are addressed, they continue to influence behaviour in ways that don’t always make logical sense.

This is why so many people feel like they are failing, even when they are doing everything right. They understand the consequences and don’t want to go backwards. They’ve made real progress. But their body is pulling in another direction. That disconnect can feel defeating, but it’s not failure. It’s a sign that something needs attention.

When the past shows up in the present

A disorienting aspect of trauma is that it collapses time. A current situation, something small and ordinary, can activate a response that belongs to something much older. The body knows this first. Then, the mind tries to catch up. This may look like anxiety, an emotional spike, or a craving that seems to come out of nowhere.

But it’s not coming from nowhere.

It’s coming from a system that learned, at some point, that something wasn’t safe and hasn’t fully updated that information.

These cravings are not random, like they may seem. Instead, they are signals. They may not be easy to interpret, but they are signals nonetheless.

What actually helps

mindfulness therapy, impact of holistic mental health treatment

So, what is the solution?

Understanding this changes the approach to recovery. It moves the focus from simply stopping behaviour and toward understanding what the behaviour has been doing. If cravings are rooted in nervous system dysregulation, then regulation becomes the work.

You can heal your nervous system through consistency. Start with small ways, like therapy that addresses both thoughts and bodily responses. Find safe and stable relationships.

Practices like breathwork and mindfulness can bring the body back into a state where it no longer feels like it has to be on guard all the time. Of course, at the beginning, it will feel unfamiliar.

It also means learning to slow down the moment instead of escaping it. It takes practice to notice what is happening in the body without immediately trying to change it.

For many people, calm is not something that the body recognises, at least not right away. The body doesn’t just settle down because it’s told to. It settles when it starts to feel safe enough.

Understanding cravings in a different way

If cravings are seen only as a problem to solve, they can feel frustrating. But when they are understood simply as information, they become a clue.

Start understanding that cravings are simply a clue that something in the system needs attention. It doesn’t need to be suppressed immediately, and it doesn’t need to be judged. It’s simply information that needs to be looked at.

It means getting curious as to what’s underneath them. Not just what do I want right now? But what am I feeling? What feels off? What is my body trying to settle?

That pause starts to change the pattern. It creates a little space between the feeling and the reaction. And in that space, something different becomes possible.

Centres for Health & Healing is here for you

At Centres for Health & Healing, we approach recovery with this deeper understanding. We don’t focus solely on behaviour because we know that the underlying patterns that drive it are more important to address. Underneath behaviour is trauma, mental health issues, nervous system dysregulation, and all the ways that the body has learned to cope.

We offer a combination of therapeutic support and structured care so that individuals are supported in building something more stable than temporary relief.

Reach out today to start the conversation and see how we can help.

References:

Your enquiries are treated with the utmost confidentiality and respect.

Take the first step toward healing with a private, no-obligation consultation. Our team is here to support you.