8 September 2026

Surinder Sandhu
GCC-registered chiropractor
Last updated 8 September 2026
Why Your Body Gets Stuck in Stress — And What It Actually Takes to Get Out
Stress isn’t a mindset problem. It’s a biological state your body locks into — and most of the advice out there doesn’t touch the mechanism. Here’s what’s really happening, and what the evidence says about getting out of it.
After 27 years in clinical practice, one pattern stands out above almost every other. Patients arrive not because they don’t know they’re stressed — they know perfectly well — but because nothing they’ve tried has actually worked. The breathing exercises help for a few minutes. The holiday helps for a week. Then they’re back where they started, often worse, wondering what they’re doing wrong.
The answer, in most cases, is that they’ve been trying to solve a biological problem with a cognitive tool.
Stress is a state, not a thought
Most stress-management advice is built on the assumption that if you think differently about a stressful situation, you’ll feel less stressed. There’s truth in that — cognitive reframing has genuine utility — but it misses the more fundamental issue: your body can be locked in a stress state completely independent of what you’re thinking about right now.
Here’s the mechanism. When your brain perceives a threat — real or imagined, physical or social — the hypothalamic-pituitary-adrenal (HPA) axis fires. Cortisol floods the system. Adrenaline spikes. Heart rate climbs. Blood is redirected from digestion and repair toward the muscles. This is your stress response, and it is ancient, automatic, and extraordinarily powerful.
The problem isn’t the response itself. The problem is the off switch.
Why the off switch stops working
In a healthy system, once the threat passes, the parasympathetic nervous system takes over. Cortisol drops. Heart rate falls. The body returns to what physiologists call homeostasis — a state of repair, restoration, and recovery.
But chronic stress — the kind most of us are actually dealing with — disrupts this cycle in two critical ways.
First, the modern stressors that trigger the HPA axis don’t have a clear end point. A looming deadline, a difficult relationship, financial pressure, a health worry — these are not threats that resolve in minutes the way a predator does. They persist. Which means the cortisol tap stays open, often for months or years.
Second, sustained high cortisol gradually desensitises the receptors that are supposed to signal the HPA axis to shut down. This is called glucocorticoid receptor resistance, and it means your feedback loop — the system that’s supposed to say “enough, we can stand down” — becomes progressively less effective. The body stays in high alert even when nothing acute is happening. You become locked into the stress state.
This is why people who have been stressed for a long time often describe feeling wired but tired, unable to relax even when they want to, sleeping badly despite being exhausted, and snapping at things that wouldn’t have registered before. Those aren’t personality problems. They’re the physiological fingerprint of a dysregulated HPA axis.
What most advice gets wrong
The conventional response to stress — and I say this as someone who has spent over two decades in healthcare — tends to address the psychological surface while leaving the biological driver untouched.
Mindfulness apps are useful but don’t recalibrate a dysregulated cortisol cycle. Telling someone to “take breaks” when their nervous system is locked in high alert is like telling someone with a broken thermostat to just open a window. Rest doesn’t reach the mechanism.
What does reach the mechanism? The evidence points to a relatively small set of targeted interventions that work directly on the HPA axis and the autonomic nervous system: specific breathwork protocols that activate the vagus nerve and shift the autonomic balance toward parasympathetic dominance; timed physical activity that burns off stress hormones without adding to the cortisol load; nutritional support for the adrenal glands; and sleep architecture — because deep, slow-wave sleep is the single most powerful cortisol regulator we have.
None of these are complicated. But they need to be applied systematically, at the right times, in the right sequence. That’s the part that generic advice almost always misses.
The distinction between stress and anxiety
It’s worth pausing on this, because the two are often conflated and they have meaningfully different physiological profiles.
Stress, broadly speaking, is a response to an identifiable external stressor. Remove or resolve the stressor, and the stress response should reduce — assuming the HPA axis isn’t already dysregulated, as described above.
Anxiety is different. It involves the anticipation of threat, often in the absence of any immediate external stressor. The nervous system is essentially generating a threat signal internally, and it can persist — and escalate — without any external prompt at all.
The overlap is significant: chronic stress frequently generates anxiety as a downstream consequence, as the dysregulated HPA axis begins to prime the nervous system to interpret neutral stimuli as threatening. But the interventions that work best for each are not identical, and treating anxiety purely as a stress problem — or vice versa — is one reason so many people feel they’ve tried everything without lasting improvement.
What the clinical picture actually looks like
In practice, I look at several things when assessing someone presenting with chronic stress or anxiety.
Sleep quality — not just duration, but whether they’re waking between 2am and 4am (often a cortisol spike), whether they feel rested on waking, whether they’re dreaming. The sleep architecture tells me a great deal about where in the stress cycle they are.
Physical symptoms — jaw clenching, shoulder and neck tension, digestive disruption, skin flare-ups, frequent infections. These are the body’s way of encoding sustained stress into tissue, and they’re often present for months before the person connects them to their stress load.
Energy patterns — specifically whether fatigue is worst in the morning and improves through the day (adrenal pattern), or whether energy crashes mid-afternoon after a reasonably normal morning (blood sugar and cortisol interaction).
Reactivity — how quickly they move from neutral to irritable or overwhelmed. A system locked in high alert has very little buffer. Small things feel disproportionately large not because the person is weak but because their nervous system has no reserve.
These patterns, taken together, give a much clearer picture than “I’m stressed” — and they point toward specific interventions rather than generic advice.
The 10-minute window
One of the most consistent findings across the research on autonomic regulation is that the nervous system can be meaningfully shifted in a surprisingly short window — if you know what to do. A targeted breathwork protocol that slows exhalation and engages the diaphragm can produce measurable reductions in heart rate variability and cortisol within ten minutes. This isn’t relaxation in the colloquial sense. It’s a direct intervention on the autonomic nervous system.
The key phrase is if you know what to do. Generic deep breathing, while better than nothing, doesn’t produce the same effect as a protocol designed around the specific mechanics of vagal activation. The ratio of inhalation to exhalation matters. The pace matters. Whether you’re breathing through the nose or mouth matters. These details make the difference between something that helps a little and something that actually interrupts the stress cycle.
Where anxiety fits into long-term management
For those whose stress has crossed into chronic anxiety — and after years of sustained activation, this is more common than most people realise — the recovery arc is longer but follows a similar logic. The nervous system needs to learn, through repeated experience, that it is safe. That safety signal cannot come from thought alone. It has to come through the body.
This is why somatic approaches — those that work through physical sensation and movement rather than cognitive processing — tend to produce more durable results for anxiety than purely talk-based or mindset approaches. The nervous system is changed by experience, not by argument.
Nutritional deficiencies play a larger role than is commonly appreciated. Magnesium, B6, and zinc are the three most consistently implicated in anxiety disorders, and deficiencies in all three are remarkably common in people who have been under sustained stress — partly because stress depletes these nutrients faster than they can be replenished through a typical diet.
A framework, not a formula
I want to be clear about what this article is and isn’t. It’s an explanation of a mechanism — the reason chronic stress persists despite good intentions and reasonable effort — and a pointer toward the categories of intervention that the evidence supports.
It isn’t a protocol. Individual presentations vary enormously, and the right sequence of interventions for one person is not necessarily the right sequence for another. If you’re dealing with significant or longstanding stress or anxiety, the most important step remains speaking with a qualified healthcare professional who can assess your specific picture.
What I can offer, through The Body Blueprint, are structured educational frameworks that translate the clinical science into practical, evidence-grounded approaches you can apply day to day — and that give you a clearer vocabulary for those conversations with your doctor or practitioner.
The Fastest Way to Reduce Stress guide walks through a precise 10-minute clinical reset protocol drawn from this understanding of the HPA axis and vagal activation — designed to interrupt the stress cycle in real time, not just take the edge off it. And for those whose stress has crossed into chronic anxiety, The Anxiety Reset takes the clinical approach further — addressing the nervous system, hormonal balance, nutritional deficiencies, and cognitive patterns together, through a structured 14-day protocol.
Understanding the mechanism is the beginning. Once you see why the body gets stuck, the path to getting unstuck becomes considerably clearer.
Dr Surinder Sandhu is a GCC-registered chiropractor with 27 years of clinical experience, based at Bedford Chiropractic Clinic. The Body Blueprint is his educational wellness guide collection — evidence-based resources on sleep, stress, heart health, energy, immunity, and the nervous system. The content of this article is for educational purposes only and does not constitute medical advice.