Most of us have used the words interchangeably. “I’m so anxious about this deadline.” “The commute is making me really stressed.” We reach for whichever word comes first, and most of the time no one questions it.

But anxiety and stress are not the same thing. They feel similar in the moment — the racing heart, the tight chest, the restless mind. They can exist at the same time. But they come from different places, they work differently in the body, and they need different responses.

Understanding the difference between anxiety vs stress is not just an academic exercise. For many people, it is the first step towards getting the right kind of support.

What is stress?

Stress is a response to something real and external. A deadline. A difficult conversation. Financial pressure. A health scare. The body perceives a demand on its resources and responds by mobilising energy — heart rate rises, attention sharpens, the system gears up to act.

This is not a malfunction. Stress is, in most circumstances, the body doing its job. It is designed to be temporary. When the demand passes — when the deadline is met, the conversation is had, the situation resolves — the stress response should ease. The body returns to baseline.

The problem arises when the demands do not ease. When pressure is chronic, relentless, or comes from a situation that cannot be resolved quickly, the stress response stays on. Over time, a nervous system that never gets to rest starts to show signs of strain.

What is anxiety?

Anxiety is different. It is not primarily a response to something external. It is a response to a perceived threat — one that may be in the future, may be uncertain, or may not be there at all in the way the anxious mind believes it is.

The anxious mind excels at anticipation. It scans for danger, rehearses worst-case scenarios, and prepares the body for a threat that has not arrived yet. This is sometimes called the what if spiral — the mind running ahead of the present moment, trying to solve problems that may never materialise.

Where stress is often tied to something specific, anxiety tends to be more general, more persistent, and less tethered to a particular cause. A person with generalised anxiety may not be able to point to what they are anxious about. They simply feel it — the low hum, the restlessness, the sense that something is wrong even when, on the surface, everything is fine.

“Stress asks: how do I handle this? Anxiety asks: what if something goes wrong — even when nothing has yet.”

Where the two overlap

Stress and anxiety share a nervous system. Both activate the body’s threat response — the same surge of adrenaline, the same tightening of the chest, the same difficulty sleeping. This is why they can be so easy to confuse.

They can also reinforce each other. Chronic stress can tip into anxiety. When the body has been in a stress response for long enough, it can start to respond anxiously even in the absence of an immediate trigger. The nervous system has, in effect, learned to expect danger.

This connection is explored in our piece on functional freeze — what happens when the nervous system has been running on high alert for so long that it shifts into shutdown instead.

How to tell which one you are dealing with

There is no perfect test. But there are some useful questions to sit with.

If you answer yes to several of the questions in the second group, it may be worth speaking to someone — not because something is wrong with you, but because the nervous system you are living in has learned a pattern that, with the right support, can change.

The physical symptoms — and why they matter

Both stress and anxiety produce physical symptoms, and these are sometimes the clearest signal that something needs attention.

These symptoms are the body’s way of communicating. They are not weakness. They are information.

When physical symptoms of stress or anxiety persist, it is always worth ruling out medical causes with your GP. And when no medical cause is found, that is often the point at which people begin to consider talking to a therapist.

“The body keeps score — long before the mind has found words for what is happening.”

The cultural dimension

In many communities — including Vietnamese, Chinese, South Asian, East African, and Eastern European families — there is no straightforward word for anxiety. Distress is often described physically: “My heart is unsettled.” “My head feels heavy.” “I cannot stop thinking.”

This is not a failure of vocabulary. It is a different way of locating distress — in the body rather than the mind. But it can mean that anxiety goes unnamed, and therefore untreated, for longer than it should.

If you have always assumed that what you feel is simply stress — because stress is something that busy, responsible people are supposed to feel — it may be worth asking whether the pattern you have been living with for years is actually something else. Our work with multilingual and culturally diverse clients begins exactly here: with that question.

When to seek support

There is no threshold you have to reach before therapy becomes appropriate. You do not need to be in crisis. But some signs that it would be worth speaking to someone include: symptoms that have lasted more than a few weeks; physical symptoms with no medical explanation; difficulty functioning at work, in relationships, or day to day; and a persistent sense that something is wrong, even if you cannot name what it is.

The NHS Talking Therapies service allows self-referral for anxiety and depression without a GP referral. If you would prefer not to wait, our anxiety counselling service is available online across London and the UK, with sessions from £50. We also offer CBT therapy — one of the most well-evidenced approaches for both anxiety and stress-related difficulties. If cost is a concern, our guide to accessing affordable therapies in London covers the full range of options.

A note before you close this tab

If you are still not sure which word fits — stress or anxiety — that is fine. The label matters less than the experience. What matters is whether what you are living with is getting in the way of the life you want to be living.

If it is, help is available. You do not need to have it perfectly diagnosed before you reach out. A first conversation with a therapist is often where the picture becomes clearer. Our piece on what talk psychotherapy involves is a good place to start if you are new to the idea — and our compassionate guide to individual therapy explains what to expect from the process.

Further reading

• American Psychological Association (2022). Stress and anxiety. apa.org — clinical distinction between stress and anxiety disorders.
• Barlow, D. H. (2002). Anxiety and Its Disorders: The Nature and Treatment of Anxiety and Panic. Guilford Press.
• Lazarus, R. S. & Folkman, S. (1984). Stress, Appraisal, and Coping. Springer — the cognitive appraisal model of stress.
• Porges, S. W. (2011). The Polyvagal Theory. W. W. Norton — on the nervous system’s role in stress and safety responses.
• Van der Kolk, B. A. (2014). The Body Keeps the Score. Viking — on how stress and anxiety are held in the body.
• NICE (2020). Generalised anxiety disorder and panic disorder in adults: management. Clinical guideline CG113.
• Mind (2023). Anxiety and panic attacks. mind.org.uk

This article is for educational and informational purposes only and does not constitute medical, psychological, or therapeutic advice. Reading this content does not create a therapeutic relationship with Talking Counselling. If you are concerned about your mental health, please seek support from a qualified healthcare or mental health professional. If you need someone to talk to, you can contact Samaritans on 116 123 (available 24 hours a day). For urgent medical advice, contact NHS 111. If there is an immediate risk to life or an emergency, call 999.