Exposure: why panic has to be approached, not avoided

“I do go to the shop. But only at eight in the morning, when it is still empty, and only to the small one where the till is near the door. And I keep my phone in my hand, not in my pocket.”

That is what life sounds like when panic has been around a while. From the outside nothing looks dramatic: the person goes to work, buys bread, takes a child to nursery. It is just that every errand is wrapped in small rules nobody else can see. Which route. At what hour. With whom. Where to sit. What to carry in the bag.

When I listen to these lists, it is always clear that they were built out of reasonable logic. Every rule once solved something. The trouble is that the rules stayed while the space kept shrinking. And here comes the sentence people least like to hear: part of the way out leads through what they avoid most carefully.

What exposure is and what it is not

Exposure is planned, repeated and sufficiently long contact with what frightens you, until your nervous system receives new information. It is not gritting your teeth and surviving, and certainly not being thrown into deep water to prove you will not drown.

The difference between exposure and simply having an unpleasant experience comes down to three things: it is agreed in advance, it is graded, and you stay long enough for something to be learnt. If you step into a lift, press the button for the next floor in a panic and rush out, you have been in a lift, but there was no exposure. There was only one more confirmation that escaping was necessary.

So in conversation I prefer to call it an experiment. The point is not to suffer for longer, but to test a prediction your fear keeps making and that you have never allowed to play out.

Briefly: why avoidance works and why it takes revenge

I have described the mechanism by which panic learns to return in more detail elsewhere; here I summarise it, because everything that follows rests on it.

When you leave the shop in the middle of a panic attack, relief genuinely arrives within minutes. The brain records this as cause and effect: it was dangerous, I left, I survived. Next time the urge to leave is stronger and the threshold for setting it off is lower. Avoidance works immediately, and that is exactly why it is so stubborn; the reward comes in seconds, the bill arrives months later.

The bill has two parts. First, the list of dangerous places grows, because fear spreads by association. Second, the prediction fear keeps making — if I stay, something terrible will happen — is never disproved. You cannot disprove what you retreat from every time. What happens to the alarm system meanwhile I described in the piece on what goes on in the brain during anxiety.

The hierarchy: a list you write yourself

The work almost always begins with a list. We write down every situation you avoid or get through only with effort, and you rate each for discomfort from 0 to 100. Zero is complete calm, a hundred the worst you can imagine.

The ratings are not objective and need not be. What matters is that they are yours and that they form a ladder with small gaps. If two steps are thirty points apart, the jump is too big and you probably will not take it. If the gap is five or ten points, it is doable.

The first step has to be one where you say: I could probably manage that, even though I do not fancy it. Not: that would be dreadful, but I will try. A first step that is too demanding is not brave, it is badly planned.

What one rung looks like in practice

Say the lift, three floors, alone. Before you step in, you write the prediction down: what exactly do you expect to happen, and how likely does it seem. Not “it will be awful”, but something concrete: I will faint, I will lose control, my heart will stop. And a number: seventy per cent.

Then you go. You stay until the discomfort has dropped by at least a third from its peak, or until the agreed time is up. Afterwards you write down what actually happened and how close the prediction was. And then — the part most often skipped — you do it again. And again. One repetition is not exposure, it is an anecdote.

Frequency matters more than duration: three times a week for twenty minutes does more than two hours once a month.

Safety behaviours: the small detail that spoils the exercise

This is the commonest reason exposure fails to take. Someone gets into the lift but holds a bottle of water the whole way, counts to ten, leans on the wall. They come out without an attack — and conclude: well, I had the water, that is why it went well.

Safety behaviours are the small moves you make to prevent catastrophe: the tablet you never take but must have, the companion who has to be reachable, the seat by the door, the pulse checks, the phone. What they share is that they give the catastrophe that did not happen the wrong explanation. Salkovskis and colleagues showed this neatly: participants who dropped their safety behaviours during exposure believed their catastrophic predictions considerably less afterwards than those who kept them, though both spent the same time in the same situation.

In practice we do not strip them all away at once. One goes first, another at the next step. But the final version of every exercise should be bare — no props, no reassuring sentences, no checking. Otherwise you are not exposed to the situation, only to your defence against it.

Interoceptive exposure: working with the sensations

With panic it often turns out that the place is not the real trigger at all. The real trigger is a bodily sensation — a racing heart, dizziness, the feeling that the air is not going deep enough. The place is simply where that sensation tends to show up.

So in therapy we work with the sensations themselves. You bring them on deliberately: breathe fast for a minute and wait for the light-headedness to pass. Spin on a chair. Breathe through a narrow straw. Run up the stairs until your heart pounds.

The first time it sounds mad. The purpose is simple: to meet the sensation several times where its origin is obvious, so that it comes loose from the meaning “this is the beginning of something terrible”. That is why interoceptive exposure often moves things faster than walking around shops. The exercises are not dangerous for a healthy person, but they are unpleasant, and with a heart, lung or neurological condition, or in pregnancy, you introduce them only in agreement with your doctor.

Why it works at all

For a long time the explanation was habituation: you stay long enough, the body tires, anxiety falls, the brain records the lower level. We now know that this explanation is incomplete. How far discomfort drops within a single session is a poor predictor of how much you change in the long run.

A better account is inhibitory learning, as described by Michelle Craske and colleagues. The old memory “lifts are dangerous” is not erased. A new one grows alongside it — “in the lift, what I expected did not happen” — and overlays the old if it is strong and varied enough. That is why it matters to practise in different places, at different hours, in different moods, and to look each time at the gap between prediction and outcome. Success is not that you stayed calm, but how much less you believe your own prediction.

This fits well with what we know about neuroplasticity: the new is not written by a single insight but by repetitions that differ enough from each other.

The commonest mistakes

The first is climbing too fast: three steps in a week, then fright, then six months of nothing.

The second is a single go instead of repetition. You drive the motorway once, it goes well, and shelve it for three weeks — long enough for avoidance to return to its old shape.

The third is exposure with the experience switched off: you go, but with your head elsewhere, headphones in, on the phone. Your body is there, no learning happens.

The fourth is measuring success by how calm you felt. If calm is the criterion, every harder session looks like failure. The criterion is whether you stayed and what you found out.

The fifth is quietly waiting for the fear to disappear before you begin. It will not. Fear steps back behind the person who goes, not in front of them. If you are caught by the thought that this time the worst really will happen, the piece on catastrophising may be close to home.

When exposure is not the right answer

This is the section most often left out of articles about exposure, and the one I find most honest.

Exposure is not the first step while bodily symptoms remain medically unexplained. If nobody has listened to your heart and looked at your bloods, that comes first — not because something is likely to be wrong, but because otherwise doubt keeps returning and every exercise becomes a walk along the edge.

Exposure is also the wrong tool when the fear is not mistaken. If someone is genuinely in a dangerous relationship or a draining environment, we do not help by having them endure it longer. Then the task of therapy is to separate false alarm from a real signal that calls for circumstances to change. On what a symptom is doing there, I have written in the piece on the symptom as a message.

I am also careful when trauma sits underneath. Exposing someone who carries an unprocessed traumatic experience to panic can turn into being flooded again rather than into learning. There the work goes first into stabilisation and only then, slowly, into facing.

And finally: exposure does not treat everything that travels with panic. If depression, exhaustion or a relationship falling apart lies underneath, the ladder will help, but it will not be enough.

What to expect from the course of it

The first week or two are often worse, not better. That is expected — you stop doing the things that brought immediate relief, and the system complains.

Then something shifts that people barely notice: the discomfort falls faster than it used to. Not lower, faster. Later it also falls lower. Somewhere along the way you forget you even did the exercise, because the situation has stopped being an event.

Steps backwards are normal. After an illness, a bad stretch or three weeks of holiday, quite a lot can come back. It does not mean it was wasted; a few rungs need repeating, which usually goes faster. How to recognise that you are moving even when it does not look like it, I described among the signs that therapy is working.

What to remember

Exposure is not a test of courage but an experiment: you predict what will happen, you stay long enough, and you look at what actually happened.

You build the ladder yourself, with small gaps, and you begin at a step that is only mildly unpleasant. You repeat it several times, in different places and at different hours.

Safety behaviours — the bottle, the companion, the seat by the door, the pulse checks — have to be put down sooner or later, otherwise the learning is credited to them.

The measure of success is not calm, but how much less you believe your own prediction.

And if your physical symptoms have not been checked, if the fear answers a genuinely unsafe situation, or if unprocessed trauma sits underneath, exposure is not the first step. How to choose someone to work with, I have written about in the piece on choosing a therapist.