Exam stress: what helps and what doesn't

Feeling nervous before an exam is normal. The NHS describes pre-exam anxiety as a natural reaction, and the point is not to eliminate it: it is to use it to your advantage. What makes the difference is telling apart the nerves that get you studying from the anxiety that stops you — and that difference is what the rest of this page is about.

Why your body reacts like this before an exam

Stress, as the NHS describes it, is generally a reaction to mental or emotional pressure. When you feel anxious or afraid, your body releases stress hormones such as adrenaline and cortisol. That is where the physical symptoms you recognise come from: a faster heartbeat and sweating. It is not weakness. It is physiology.

Symptoms of stress can include difficulty concentrating, headaches and sleeping too much or too little. Notice the irony: these are exactly the symptoms that make studying harder, and they are also the ones that scare people most when an exam is looming.

What you can change this week

Start with what has the most consistent backing. NHS guidance for stress in general is concrete and nothing exotic: talk about how you feel with a friend, a family member or a health professional, use simple time-management techniques, do breathing exercises, plan ahead for stressful days or events, and try not to turn to alcohol, tobacco, gambling or drugs to relieve stress.

Exercise deserves its own mention. The NHS states that physical activity can help boost energy levels, clear your mind and relieve stress — and that it does not matter which activity: walking, cycling, swimming, playing football or dancing are all effective. If you have been sitting still studying, a twenty-minute walk is not a break that steals time. It is part of the work.

Rehearsing exam day takes some of its power away

There is one exam-specific measure the NHS recommends. If anxiety is getting in the way rather than helping, practising the activities you will do on exam day makes everything less frightening. In practice: do practice tests under exam conditions, and see the hall or room beforehand. The unknown weighs more than the subject matter.

Alongside this, the NHS suggests thinking about what you already know and the time you have put into studying, because that can help you feel more confident. It sounds small. It is not.

Sleep before the exam is worth more than the last hour of study

Much of the night-before nerves can be settled by one uncomfortable decision. The NHS is clear: sleeping well improves thinking and concentration, and studying all night before an exam is usually a bad idea, because sleep benefits you far more than a few hours of rushed last-minute study. Setting aside about half an hour to slow down between studying or screens and bed helps you get a good night.

The same source notes that most teenagers need eight to ten hours of sleep a night. If that is you, the maths works itself out. If it is not, the logic still holds: the night before is not for learning new material.

Breathe, but regularly

The NHS describes a calming breathing technique for stress, anxiety and panic that takes only a few minutes and can be done anywhere. Breathe in gently through your nose and out through your mouth, letting the breath go deep into your belly without forcing it, counting from 1 to 5 if that helps. It works better if you practise it regularly.

Practising the breathing in the week before, in calm moments, is what makes it available at the moment you need it.

What tends not to help, even if everyone says it does

Some things recommended out there have no support in the available guidance, and others are frankly counterproductive. Alcohol is the clearest example: the NHS explicitly includes it among the things to try to avoid to relieve stress. A drink to calm down the night before is not an anxiety-management strategy.

The all-night study marathon has already been mentioned and is worth repeating for another reason: it is the measure that looks most productive and is least so. And there is the repeated mental rehearsal of failure: nothing in what we have available suggests that anticipating the worst prepares you better.

As for the rest — supplements sold as calmatives, miracle teas, apps that promise to rebalance the nervous system — the available evidence does not allow us to say they solve the problem. That does not mean they are harmful by definition. It means you should not count on them for what matters.

Where supplements honestly fit

This is the part where it is worth being direct. The evidence on ingredients used in stress supplements is emerging: there is promising early research, but it is not settled, and we do not know enough to promise you anything. L-theanine is one of the ingredients that has been studied in this context, and that is why it appears in products such as Stress Relief Gummies — which contain, per two gummies, 300 mg of ashwagandha extract, 100 mg of L-theanine, 100 mg of GABA, 25 µg of vitamin D3 and 500 µg of vitamin B12. None of this replaces sleep, exercise or rehearsing the exam.

If you decide to try it, read the conditions carefully. The stated dose is two gummies a day, for adults. Do not exceed the recommended daily dose, and food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Not recommended for children, pregnant or breastfeeding women, or people with thyroid disorders or autoimmune diseases. In case of liver disease, other illnesses or use of medication, consult a healthcare professional before use. May cause drowsiness; if this occurs, do not drive or operate machinery. Contains polyols, and excessive consumption may produce laxative effects.

Notice what is not written above: at no point do we tell you that this product treats exam anxiety. It does not. If your difficulty is sleeping the night before, the problem is solved with a schedule and winding down, not with a bottle.

When this stops being normal

The line is clearer than it seems. The NHS advises seeking help, starting with your GP, if anxiety or low mood is severe, persists and interferes with daily life. It also advises seeing a doctor if you are having difficulty coping with stress, or if the things you are trying for yourself are not helping.

The NHS criterion is anxiety interfering with daily life. If that is you, the problem is no longer the exam. It is what needs support — and seeking it is not an overreaction. A doctor can help you work out what is going on and what makes sense to try next.

How long until you know it is working

We do not have a set timeframe to give you, and it is better to say so than to invent one. What the available guidance indicates is that some measures have a more immediate effect and others build over time. Breathing, for example, works better with regular practice, and exercise can help relieve stress.

An honest test: if after a week of applying sleep, exercise and rehearsing exam day you still feel that anxiety is holding you back, that is information. It is not a failure on your part. It is the signal to move to the next point — and that point is a conversation with a healthcare professional, not another technique pulled off the internet.