Most people can describe stress. It's the tight chest before a presentation, the 3am mental to-do list, the flash of irritation when someone asks a perfectly reasonable question at the wrong moment. Uncomfortable, yes, but usually temporary — and it tends to ease once the pressure does.

Burnout is a different animal. It doesn't feel like being wound up. It feels like the battery has gone flat and someone has mislaid the charging cable. Knowing which one you're dealing with matters, because the two need quite different responses — and one of them rarely budges after a weekend off.

Stress is a normal response, with a beginning and an end

Stress is the body's short-term reaction to demand. Your nervous system gears up: heart rate rises, muscles tense, digestion slows, attention narrows onto the problem in front of you. That's genuinely useful when you need to finish a report, sit an exam or handle an emergency.

The trouble starts when the switch never flicks back. You can usually tell you're in stress rather than something deeper if you can still name what's bothering you, if sleep improves once the deadline passes, if a walk or a proper conversation with a friend takes the edge off, and if you can still enjoy things in between the pressure.

What burnout actually is

Burnout is what happens when chronic stress goes unresolved for long enough that your capacity to recover is used up. It shows up most often in work and caring roles — the places where you can't simply stop turning up.

Three features tend to define it: exhaustion that rest doesn't fix, growing detachment or cynicism, and a nagging sense that nothing you do makes much difference.

It's worth knowing that burnout isn't a medical diagnosis in the way depression or an anxiety disorder is. The World Health Organization lists it as an occupational phenomenon rather than a medical condition, and a GP won't formally diagnose it. That doesn't make it less real, but it does change the useful question. Rather than "which label do I have?", it's usually more helpful to ask "what has been draining me, and what needs to change?"

Burnout, depression and anxiety also overlap considerably, and telling them apart takes a professional eye. If you're unsure, that's a good reason to talk to your GP rather than self-diagnose from an online checklist.

The signs, side by side

When it's stress

• You feel wound up, restless or irritable, but you can still switch off in the right company.
• Sleep is disrupted around specific events — a deadline, a difficult conversation, a hospital appointment.
• You still care about your work and the people around you, even if you're short with them.
• Rest helps. A decent night's sleep or a day away from the problem makes a noticeable difference.
• You can identify what's bothering you, even if you can't fix it yet.

When it's burnout

• Exhaustion a lie-in doesn't touch. You wake tired and stay tired all day.
• Detachment. You go through the motions, and find yourself cynical about work or people you used to care about.
• A creeping sense of ineffectiveness, or of effort that goes nowhere.
• Emotional flatness — fewer highs, and little patience for anything requiring effort.
• Physical signs: headaches, stomach problems, catching every minor illness going, appetite changes.
• Withdrawal — cancelling plans, letting messages sit unanswered, watching things slide.

Warning signs that need attention sooner

Some signals suggest you shouldn't wait and see. Contact your GP promptly if you notice any of the following, and treat the last two as urgent.

1. Persistent hopelessness, or a sense that there's no point, lasting more than a couple of weeks.
2. Losing interest in almost everything, including things you normally love.
3. Drinking more, or using substances, to get through the day or to sleep.
4. Big changes in appetite, weight or sleep that don't settle no matter what you try.
5. Being unable to manage basic tasks — getting to work, feeding yourself, caring for children or dependents.
6. Thoughts of harming yourself, or of not being here.

For the last two, don't wait for an appointment. Contact your GP for an urgent same-day slot, call NHS 111, or go to your nearest A&E. Samaritans is free to call at any hour on 116 123, and Shout offers text support on 85258.

Why the distinction changes what helps

If you're stressed, the levers are usually load and recovery. Trim what you can, protect your sleep, move your body, tell someone how you're doing, and hold a boundary or two. Stress responds reasonably well to that.

Burnout is different. Rest alone seldom fixes it, which is why so many people come back from a fortnight away and feel exactly as they did before. Recovery usually requires changing something structural: the volume of work, the shape of the role, the expectations you've absorbed, or the way you've been operating for years.

That might mean a conversation with your manager, a referral to occupational health, a request for adjusted hours, or support with caring responsibilities. It might mean looking hard at whether the situation can change at all.

How to get support in the UK

• Your GP. The usual first stop. They can talk through what's going on, arrange blood tests to rule out physical causes such as thyroid problems or anaemia, and refer you on if needed.
• NHS Talking Therapies. Free psychological therapy on the NHS, and in most areas you can refer yourself without seeing a GP first. Search "NHS Talking Therapies" plus your area, or look on nhs.uk. Waiting times vary.
• Work. If your employer has an Employee Assistance Programme, it usually includes free confidential counselling. Occupational health and HR can discuss adjustments. ACAS offers free, impartial advice on workplace issues.
• Immediate support. Samaritans on 116 123, free, 24 hours a day. Shout on 85258 for text support. NHS 111 can point you to urgent mental health help in your area.
• Emergency. If you feel you're in immediate danger, call 999 or go to A&E.

This is general information rather than medical advice, so please speak to a GP or another qualified professional about your own situation.

A practical place to start

Take ten minutes and a sheet of paper. Write three short lists: what drains me, what restores me, and what I could change this month. Be specific. "Work" is too broad; "the 7am calls I don't need to be on" is something you can act on.

Then pick one item from the third list — the smallest thing you'd realistically do — and one person you'll tell. A GP appointment, a conversation with your manager, or simply saying out loud to a friend that you're not coping all count as action.

If you can only manage one thing today, make it the appointment or the conversation. Burnout doesn't shift by pushing harder through it. It shifts when the draining stops and there's enough room to rebuild.

Photo: SnapwireSnaps / Pixabay