It's your turn to speak. Someone asks you a simple question in English, the kind you have answered a hundred times. You open your mouth and nothing is there. No words, no grammar, not even the start of a sentence. Three seconds feel like thirty.

Afterwards the answer arrives perfectly, usually on the way home. And with it comes the familiar thought: my English just isn't good enough.

I want to offer you a different explanation, because in my experience it's almost always the right one. Your English didn't disappear. Something got in front of it.

A smoke alarm in your head

Deep in your brain is a small, fast alarm system. Its job is to spot danger and get you ready to deal with it, and, like the smoke alarm in your kitchen, it would rather go off ten times for burnt toast than miss one real fire.

The trouble is that this alarm isn't very good at telling different kinds of danger apart. A car coming towards you and a room full of people waiting for your answer can feel surprisingly similar to it. For our ancestors, being judged or rejected by the group really was dangerous, so we are built to take social threats seriously.

When the alarm goes off, your body releases stress hormones such as adrenaline. Your heart speeds up, your breathing gets shallow and your muscles tighten. All of that is useful if you need to run. It is much less useful on a Tuesday morning video call.

What the alarm does to your English

Three things happen at once, and each one makes speaking harder.

Your working memory shrinks. Working memory is the part of your mind that holds things for a few seconds while you use them: the word you need, the beginning of your sentence, the question you were just asked. Under stress it holds much less. The word is still stored in your long-term memory; you just can't reach it in that moment.

You start watching yourself. Instead of thinking about your message, you are checking everything: Is that the right tense? Did I say that properly? Are they judging me? That checking uses exactly the mental space you need to communicate.

Your body adds a second worry. A racing heart, a dry mouth, hot cheeks. Now you are worried about your English and about whether everyone can see you are nervous. (They usually can't, but that's another article.)

Put those together and you get a loop. Anxiety makes you speak less well, which makes you more anxious, which makes speaking harder still. Each turn seems to prove what you already feared.

What the research says

This isn't just a teacher's theory. In 1994, two Canadian researchers, Peter MacIntyre and Robert Gardner, looked at how anxiety affects people using a new language at three stages: taking information in, processing it and producing it. They found that anxiety was linked to weaker performance at every stage, not only when people spoke.

In other words, a blank mind is what anxiety blocking access to your knowledge looks like. It is not evidence that the knowledge isn't there.

That matters, because the usual response to going blank is to study more grammar and learn more words. If the problem is access rather than knowledge, more grammar won't fix it. Calming the alarm will.

Why it happens in English and not in your own language

Learners often ask me why they never go blank in their first language. There are a few reasons. English is often tied to things that really matter: a job, a promotion, a visa, a new life in another country. Your alarm notices high stakes. Many people also carry an old memory or two: a teacher who corrected them in front of the class, a stranger who said "What?" a little too loudly. One moment like that can teach your alarm that English is dangerous.

None of this means something is wrong with you. In more than twenty years of working with people in difficult moments, first in care and then in the classroom, I have never met anyone who was simply "bad at" staying calm. I have met a great many people whose alarm had learned to go off in the wrong places. What has been learned can be relearned.

What it looks like when it eases

In one of my evening group classes we were doing a simple warm-up: introduce the person on your left. One student, a confident, funny man during the coffee break, stood up, said his neighbour's name and stopped. Ten seconds of silence. He was searching for words he had used five minutes earlier.

I didn't rescue him with the answer. I asked him to sit down, take one slow breath with a long breath out, and tell just me one thing about his neighbour. He did, in a full sentence, and then two more. Afterwards he said, "I thought my English disappeared." It hadn't. For ten seconds his alarm had simply blocked the door.

Try this today: the 30-second reset

You can't switch the alarm off completely, and you wouldn't want to; a little nervousness helps you focus. The aim is to bring it down enough to think. The quickest way I know is the physiological sigh:

  1. Breathe in through your nose. A full, comfortable breath.
  2. Add a second, short sniff on top. Two breaths in, one after the other.
  3. Breathe out slowly through your mouth. Make the breath out longer than the breath in.

Repeat two or three times. A 2023 study at Stanford (Balban and colleagues) found that five minutes a day of this kind of breathing, with a long breath out, improved people's everyday mood more than the other methods they tested. It measured mood, not speaking, so treat it as a strong starting point rather than a guarantee.

The key is to practise it when you're calm, perhaps while the kettle boils, so your body already knows it when you need it.

In the middle of a conversation, do one sigh while you say a phrase that buys you time. Nobody will notice anything except a thoughtful pause:

  • "Let me think about that for a moment."
  • "That's a good question. Give me a second."
  • "Hmm, how should I put this…"
  • "Let me put that another way."

Pausing is completely normal in English, at work too. Listen to any radio interview and count the "hmm"s.

The words haven't gone anywhere

Next time your mind goes blank, try telling yourself something different. Not "my English is terrible", but "my alarm has gone off". Breathe out slowly, buy a few seconds, and let the words come back. They usually do.