How do I stop blanking in exams?

Practise retrieval rather than recognition — closed book, write it out, then check — and on the day start with a question you can definitely do. Context is what retrieval needs, and a successful first answer supplies it.

Should I revise the night before?

Lightly, and then sleep. Sleep loss impairs working memory, attention and retrieval, and raises how threatening the exam feels. Cramming trades the three things you need for the one you already have.

Which breathing technique in the exam hall?

Even counts — in four, hold four, out four, hold four — before you start and briefly every twenty minutes. Steady rather than sedated; you need the alertness.

Exam anxiety: what to do in the hall, and what to do in the six weeks before

You turn over the paper and the first question means nothing. You know you have revised this. Your hands are cold, your heart is loud, and you are watching the clock while reading the same sentence repeatedly.

Do this now

In the hall, before you write

2 minutes

Before reading anything: put the pen down, feet flat, and take six even breaths — in four, hold four, out four, hold four.
Then read the whole paper once without answering anything. Reading everything reduces the fear of what is coming.
Start with the question you can definitely do, not question one. Beginnings unlock retrieval.
If you blank: one long exhale, then write down anything you do know about the topic in the margin. Retrieval runs on context.
Every twenty minutes: one long exhale and shoulders down. Two seconds, and it stops the arousal accumulating.

Run it with a timer

Worry occupies the resource the exam needs

Test anxiety impairs performance primarily by consuming working memory: the worry itself is a competing task, so less capacity is available for the question. This is why highly anxious students underperform relative to what they know, and why the effect is largest on questions that require holding several things in mind at once. The knowledge is intact; the workspace is occupied.

Two revision habits that transfer

Retrieval practice — testing yourself rather than re-reading — produces far more durable recall, and it also rehearses the act of retrieving under pressure, which is the thing that fails. Spacing the practice out beats massing it. Together they are the best-evidenced pair in the whole learning literature, and they are more protective against blanking than any technique used on the day.

And one thing to do the night before

Sleep. Sleep loss degrades exactly the functions an exam requires — working memory, attention, retrieval — and it raises anxiety sensitivity, so the same exam feels more threatening. A late night of cramming reliably costs more than it adds, which every student knows and almost nobody acts on.

What changes it, over a week

Every revision session
Test yourself instead of re-reading. Closed book, write what you remember, then check. It feels worse and works better.
Spaced out
Short sessions across days rather than long ones the night before. Spacing is the other half of retrieval practice.
One full mock
Timed, in silence, with the phone in another room. Practising the conditions matters as much as practising the content.
Daily, five minutes
Box breathing at the start of each revision session. It pairs the pattern with the material so it is available in the hall.

When this is not a breathing pattern

See a clinician — promptly, and before assuming any of this applies to you — if any of these describe you:

Panic attacks during exams or revision, increasing in frequency
Not sleeping for several nights before exams, repeatedly
Low mood, hopelessness or loss of interest lasting more than two weeks
Avoiding exams or dropping courses because of the anxiety — speak to student support, and ask about access arrangements
Any thoughts of harming yourself — contact your doctor, student services or a crisis line today

This page is education, not medical advice, and no part of it is a diagnosis. Full disclaimer.

Questions people ask

How do I stop blanking in exams?: Practise retrieval rather than recognition — closed book, write it out, then check — and on the day start with a question you can definitely do. Context is what retrieval needs, and a successful first answer supplies it.
Should I revise the night before?: Lightly, and then sleep. Sleep loss impairs working memory, attention and retrieval, and raises how threatening the exam feels. Cramming trades the three things you need for the one you already have.
Which breathing technique in the exam hall?: Even counts — in four, hold four, out four, hold four — before you start and briefly every twenty minutes. Steady rather than sedated; you need the alertness.

What this page is built on

— Eysenck et al., 2007, Emotion — attentional control theory and anxiety's effect on working memory
— Roediger & Karpicke, 2006, Psychological Science — the testing effect
— Dunlosky et al., 2013, Psychological Science in the Public Interest — which study techniques actually work

Named by author and year. The DOIs live in the journal.

Put a number on it

Most of what is on this page tracks one measurement: the Control Pause. It takes sixty seconds, needs no account, and it is the thing that tells you whether any of this is working.