Toxic Stress: What It Is, What It Does to Your Body, and How to Finally Break Free
Most people who come to me don't describe themselves as traumatised.
They describe themselves as exhausted. Wired but tired. Always slightly on edge, even when life is objectively fine. Unable to switch off. Reacting to things with an intensity that surprises even them.
What they're often describing — without knowing the term for it — is toxic stress.
And it's one of the most under recognised drivers of anxiety, emotional dysregulation, burnout, and physical illness that I see in my practice.
What Is Toxic Stress?
We all experience stress. In small doses it's not only normal — it's useful. It sharpens focus, motivates action, and helps us rise to challenges. That's ordinary stress, doing its job.
Toxic stress is different. It's what happens when the body's stress response is activated too intensely, too often, or for too long — without adequate support or recovery time.
I find this analogy helpful:
Think of stress like a smoke alarm in your home.
Positive stress is the alarm going off because you've burnt the toast. Annoying, but it does its job and stops quickly.
Tolerable stress is the alarm going off because there's a real fire — but you have firefighters. It's serious, but with the right support, you get through it.
Toxic stress is the alarm that never stops ringing. Even when there's no fire. Even when everything is technically fine. The alarm just keeps going — wearing down everyone in the house, making it impossible to rest, making it hard to think about anything else.
That constant alarm state is what toxic stress does to the nervous system. And over time, it causes serious harm.
What Causes Toxic Stress?
Toxic stress doesn't come from a single bad day. It develops through repeated or prolonged exposure to stressors — particularly when the support needed to process those stressors isn't available.
Adverse Childhood Experiences (ACEs)
The roots of toxic stress are very often in childhood. Adverse Childhood Experiences — ACEs — are stressful or traumatic events that occur in early life and include things like:
Physical, emotional, or sexual abuse
Emotional neglect — growing up without warmth, attunement, or validation
Witnessing domestic violence
Living with a parent experiencing addiction or serious mental illness
Parental separation or loss
Being bullied or socially rejected
When a child is exposed to these experiences repeatedly — and especially when there is no safe, supportive adult to help them process what's happening — the stress response becomes the default setting. The nervous system learns that the world is dangerous, that threat is always around the corner, and that it needs to stay on high alert.
That wiring doesn't automatically reset when childhood ends. Many adults walk around in a state of chronic nervous system activation that began before they were old enough to understand what was happening to them.
Ongoing Adult Stressors
Toxic stress can also develop or deepen in adulthood through sustained exposure to:
Financial hardship or housing insecurity
Difficult or abusive relationships
Chronic illness or caring responsibilities
Workplace pressure, bullying, or burnout
Discrimination, prejudice, or systemic inequality
Prolonged grief or loss
The key factor is duration combined with lack of support. Stress becomes toxic when there's no let-up, no recovery, and no one to help carry it.
What Toxic Stress Does to the Body and Mind
This is where people often have their first moment of recognition — when they understand that what they've been experiencing isn't weakness or failure, but a physiological response to sustained overwhelm.
Physical effects
Toxic stress keeps the body locked in fight-or-flight mode, flooding it with cortisol and adrenaline over extended periods. The consequences include:
Increased risk of heart disease, high blood pressure, and stroke
A weakened immune system — getting ill more frequently, taking longer to recover
Chronic pain, headaches, and digestive problems
Fatigue that doesn't respond to rest
Disrupted sleep — difficulty falling asleep, staying asleep, or waking unrefreshed
Increased risk of diabetes and metabolic disorders
Mental and emotional effects
Persistent anxiety — a low-level hum of dread that has no obvious cause
Emotional dysregulation — reacting more intensely than situations seem to warrant
Depression, flatness, or a sense of going through the motions
Difficulty concentrating or making decisions
Feeling constantly braced for something to go wrong
Numbness or disconnection — from yourself, from others, from your own life
Effects on children and development
For children, toxic stress is particularly significant because it occurs during the period when the brain and nervous system are actively forming. Prolonged activation of the stress response in childhood can affect:
Brain development — particularly the areas governing learning, memory, and emotional regulation
The ability to concentrate and retain information
Social and emotional development
Long-term physical and mental health
This is why addressing toxic stress — both in adults and in children — matters so much. The nervous system is not fixed. It can change. And with the right support, it does.
How IEMT and the BLAST Technique Treat Toxic Stress at the Root
Most approaches to stress management — mindfulness, breathing exercises, lifestyle changes — work at the surface. They help regulate the symptoms. And they have value.
But for people whose nervous systems have been in a state of chronic activation for years — often since childhood — surface-level regulation isn't enough. The stress response doesn't just need soothing. It needs to be genuinely reset.
This is where IEMT and the BLAST Technique come in. These are the approaches I use first, and most consistently, for clients carrying toxic stress — because they work where the stress response actually lives: in the subconscious mind and the nervous system.
IEMT — Integral Eye Movement Therapy
IEMT is particularly powerful for toxic stress that has its roots in early experience, because it addresses both the emotional memories driving the chronic activation and the identity beliefs that formed around them.
If you grew up in an environment that was unpredictable, frightening, or emotionally unsafe, your nervous system didn't just experience that as stressful — it formed conclusions. "The world is not safe." "I have to stay alert." "Relaxing is dangerous." "I am not enough." These aren't thoughts you consciously choose. They're subconscious convictions, wired in early.
IEMT uses guided eye movement patterns to change how these memories and beliefs are stored in the brain — rapidly reducing their emotional charge and shifting the nervous system out of its habitual high-alert state. Many clients are surprised by how quickly things change. The alarm that's been ringing for years gets quieter. Then stops.
The BLAST Technique — Bi-Lateral Analysis and Stimulation Treatment
The BLAST Technique works at the deeper layer still — directly with the accumulated emotional charge that toxic stress leaves in the body and nervous system.
Where IEMT addresses the specific memories and identity beliefs, BLAST works with the overall physiological state — the chronic tension, the background fear, the body that doesn't know how to stand down. Using bilateral stimulation, BLAST helps the nervous system complete the stress response it has been holding in an incomplete loop — releasing what has been stuck and allowing genuine regulation to occur.
For clients who have been in therapy before and made cognitive progress — who understand why they feel the way they feel — but whose body and nervous system are still stuck in the old pattern, BLAST often creates the shift that understanding alone couldn't.
Together, IEMT and BLAST don't just manage toxic stress. They help resolve it.
The Role of Hypnotherapy
Once IEMT and BLAST have done the core processing work, hypnotherapy supports the integration — helping the nervous system build and consolidate a new normal. One where rest feels safe. Where the alarm is quiet. Where the body can finally exhale.
What Changes When Toxic Stress Is Treated
I want to paint a picture of what healing actually looks like — because I think people sometimes find it hard to imagine feeling genuinely different.
When toxic stress is resolved at the root, clients describe:
Waking up without the familiar weight of dread
Reacting to everyday frustrations without the disproportionate intensity they'd come to expect from themselves
Being able to rest — actually rest, not just lie down while the mind races
Relationships feeling easier — less defensive, less braced for conflict
A general sense of spaciousness that they hadn't felt in years, or sometimes ever
This isn't management. It's genuine change.
Frequently Asked Questions
What is the difference between stress and toxic stress? Ordinary stress is a normal, healthy response to challenge — it activates, serves its purpose, and settles. Toxic stress occurs when the stress response is activated too frequently, too intensely, or for too long without adequate recovery or support. Over time, it causes measurable harm to mental and physical health and often requires active treatment rather than lifestyle adjustment alone.
Can toxic stress from childhood affect you as an adult? Yes — significantly. When the stress response is repeatedly activated in childhood without appropriate support, the nervous system learns to treat high alert as its default state. That wiring continues into adulthood, often showing up as chronic anxiety, emotional dysregulation, relationship difficulties, and physical health problems — even when adult life is relatively stable.
Can toxic stress be healed? Yes. The nervous system is not fixed — it is changeable, at any age. With the right approach — particularly techniques like IEMT and the BLAST Technique that work directly with the nervous system rather than just the thinking mind — toxic stress can be resolved, not just managed.
How is toxic stress different from PTSD? PTSD typically involves a specific traumatic event or events and is characterised by flashbacks, avoidance, and hyperarousal related to those events. Toxic stress is more diffuse — it's the result of prolonged chronic activation of the stress response, often without a single identifiable event. The two can coexist, and both respond well to IEMT and BLAST.
How long does it take to recover from toxic stress? This depends on how long the stress response has been activated and how deeply the patterns are embedded. Some clients notice significant shifts within a handful of sessions. For deeply embedded patterns rooted in early childhood experience, the process may take a little longer — but change is almost always faster than people expect when we work at the right level. I offer a free 30-minute consultation to talk through what's likely for you.
Can children be treated for toxic stress? Yes. I work with children as well as adults, using approaches specifically adapted for younger clients including the Bunny Talks Process. Early intervention for childhood toxic stress makes a significant difference to long-term outcomes.
Where can I find a trauma-informed therapist for toxic stress in Suffolk? I'm based in Suffolk and work with adults and children experiencing toxic stress, anxiety, trauma, and related difficulties — in person and online across the UK. You can book a free 30-minute consultation directly through my website.
You Don't Have to Keep Living on High Alert
If the alarm has been ringing for as long as you can remember, it can be hard to believe that silence is possible.
It is.
Not through willpower. Not through pushing harder or thinking differently. Through working with the nervous system at the level where the pattern actually lives — and helping it finally learn that it's safe to stand down.
If any of this has resonated, I'd encourage you to start with a conversation.
Book Your Free 30-Minute Chat →
Or explore my free A-Z Trauma Guides — including dedicated guides to hypervigilance, overwhelm and burnout, and knowing your nervous system — completely free.
Bonnie Silverback is a trauma-informed therapist based in Suffolk, UK, specialising in IEMT, the BLAST Technique, and hypnotherapy for adults and children. She works with toxic stress, childhood trauma, anxiety, emotional neglect, phobias, and chronic pain. Sessions available in person in Suffolk and online across the UK.
