When you fall ill every Friday: the body that waits for the weekend

“I hold it together all week. Then Friday afternoon comes, I shut down my laptop, sit on the sofa — and on Saturday morning I wake up with a fever.”

I hear this sentence in different versions. For one person it is a headache that starts on Saturday morning and lasts until Sunday evening. For another, a cold that waits for precisely the first day of the holiday. For a third, a tiredness so heavy that they spend the whole weekend lying down, only to be “fine” again on Monday and carry on running. It almost always comes with the same mix of anger and shame: You must be joking. When I finally have time for myself, my body takes that away too.

If you recognise yourself in this, you are not the only one and you have not imagined it. The pattern even has a name in the research literature. But a name does not tell the whole story. In this post I want to show what we know about it, what we do not know — and why I think it is worth looking not only at the body, but also at the working environment in which that body holds out all week.

The pattern has a name: leisure sickness

In 2002 the Dutch psychologist Ad Vingerhoets and two colleagues published a study with a title far more modest than the story that later went round the media: a pilot study of the prevalence and background of what they called leisure sickness. Using a questionnaire, they asked adults in the Netherlands whether they tended to fall ill precisely at the weekend or at the start of a holiday. Roughly three per cent of respondents said yes.

Those who reported the pattern most often mentioned headaches and migraine, fatigue, muscle pain, nausea and cold-like complaints. They also more often described themselves as people with a heavy workload, a strong sense of responsibility, perfectionist demands on themselves and difficulty switching from work mode into rest.

Here it is important to be honest. The study was small, it relied on what people said about themselves, and it did not check whether they were actually ill or simply more attentive to their bodies. It did not prove what causes it. Leisure sickness is not a diagnosis and you will not find it in any handbook of illnesses. It is a description of a pattern that many people recognise, and a question that remains partly open. That is exactly why I treat it here as an invitation to observe, not as an explanation that applies to everyone in the same way.

What may happen when tension lets go

There are several explanations for the pattern and none of them is final. Most likely each tells part of the story.

The first explanation is physical. When you are under pressure, your body works in a state of readiness. The autonomic nervous system switches to mobilisation, stress hormones are released, and energy is directed towards holding out. In a large meta-analysis, the researchers Suzanne Segerstrom and Gregory Miller showed that short-term stress temporarily even strengthens some of the body’s defensive responses, while long-term stress gradually weakens them. A week in readiness sits somewhere in between: short enough to get through, long enough to wear you out. When the pressure suddenly lifts on Friday evening, the balance shifts — and what the body has been holding back or drowning out all week comes to the surface.

With migraine, this idea has actually been tested. Richard Lipton and colleagues followed people with migraine and found that an attack was more likely to follow a day on which perceived stress fell, rather than the day on which stress was highest. They called it the “let-down headache”. This does not mean every Saturday headache is one, but it does suggest that the transition from tension to relaxation is not a neutral event for the body.

The second explanation has to do with attention. Back in the 1980s, the psychologist James Pennebaker described how we notice bodily signals more the fewer other stimuli there are around us. During the week you are carried along by deadlines, meetings and messages; your attention points outwards. On Saturday morning it is quiet — and suddenly you hear everything your body has been saying for days.

The third explanation is behavioural. During the week you may sleep less, eat in a rush, drink more coffee and move less. When the rhythm breaks on Friday evening, the consequences show. That is part of the story too, but not all of it.

Who is more likely to fall ill in their time off

When I read descriptions of people in whom this pattern keeps repeating, and when I listen to those who bring it into a conversation, a similar profile often emerges. These are not people who avoid work. Quite the opposite.

• Reliable. Everyone can count on them. The deadline will be met, even if it means working until midnight.
• Responsible for more than their job description says. They know where things are, who needs what and what will go wrong if they do not keep an eye on it.
• Overcommitted. The German sociologist Johannes Siegrist called this style overcommitment: it is hard to say no, hard to leave work unfinished, and thoughts about it follow you into the evening. In his research, this style, together with an imbalance between effort invested and reward received, is linked to more health problems.
• They fall ill “at the right time”. During the week they do not allow themselves to be ill, because that would mean leaving others in the lurch.

If this sounds like a description of someone on the way to exhaustion, you are right. I wrote about why this happens to the most conscientious people in Why it is the most responsible and reliable people who burn out. Leisure sickness is not the same as burnout, but the two can be neighbours. Repeated Saturday illnesses are sometimes one of the physical signs of burnout that we blame on everything else.

The workplace as a system: who carries the tension for everyone

In relational family therapy, in which I am training, we do not look only at the individual but at the system they live in. A family is a system, but so is a work team. It has its roles, its unwritten rules and its own way of keeping its balance. And just as in a family, tension in a team is not shared out evenly. Someone carries more of it than the others.

Often it is precisely the person who falls ill at the weekend. The one people call when something gets stuck. The one who fixes a mistake someone else made. The one who does not take sick leave because “there is nobody who would do it instead of me anyway”. A system gets used to a person like that very quickly. While they hold on, others do not have to try as hard. When the manager knows they will sort it out, there is no need to look for other solutions.

Here something happens that we also know from families: illness becomes the only permitted break. In a system where absence without a reason is not acceptable, where “I am just tired” does not count and every day of leave has to be justified, a body that falls ill is the only voice nobody argues with. Not even you. A fever is an argument that needs no defending.

Your body is not being calculating, and you are not malingering. But when the pattern repeats, it is worth asking: what would happen if you took a break before your body takes it for you? Who would notice? Who would be annoyed? And what would it mean for you?

Where you learnt that rest has to be earned

When I explore with someone where their relationship to rest comes from, we very often end up back in childhood. In some families the rule was that you could only go to bed if you had a temperature. That you rest when everything is done — and everything was never done. That tiredness is laziness and complaining is weakness. Some had a parent who was always on their feet, and next to them they learnt that a person’s worth lies in how much they can endure.

Christian Gostečnik, the founder of relational family therapy, describes how we unconsciously repeat patterns from our first relationships in all later ones — including at work. A working environment that rewards endless endurance can therefore fit strangely well for someone who was already practising that endurance at the age of ten. And the other way round: a manager who expects you to be always available can awaken the same feeling someone once had with a parent who only noticed what you had not yet done.

This does not mean your parents are to blame for your Saturday colds. It means that the habit of how long you hold out and when you allow yourself to let go did not start in this job. That is why it does not disappear with the next holiday either.

What a conversation about it can sound like

A short example (composite, not a real person):

“I spent the whole weekend in bed again. The third time this month.”
“What was Friday like, before you left work?”
“Same as always. I was clearing up after others until six. At five the boss sent something ‘urgent’.”
“And when you got home?”
“I sat down and felt like I was gone. As if someone had switched off the power.”
“When was the last time you sat down before someone switched you off?”
A long silence. “I don’t know. Maybe never.”

A moment like this is often more important than any advice about vitamins and sleep. When someone notices that they know rest only in the form of a collapse, a question opens up: what would it be like to learn to land gradually? Not so as to become less conscientious. But so that their body is not the only one with the right to say enough.

A soft landing instead of a fall

Your body does not need the week to be easy. It does help, though, if the tension does not drop from a height in a single evening. This is not about a new list of obligations, but about a different rhythm of transition. For some people it softens the pattern, for others it does not — but the experiment costs little.

Here is an exercise you can start this Friday:

1. Use the last hour of the working week for closing, not opening. Do not start new tasks. Write down what is still open and where you will pick up on Monday. Once it is written down, your head holds on less.
2. Create a transition ritual. Ten minutes of walking before you get into the car, changing your clothes as soon as you get home, or a few slow out-breaths in the car park. Your body needs a sign that something has ended. You could try breathing with a longer out-breath.
3. On Saturday morning, do not “switch off” completely. A little movement, a walk, lunch at the usual time. Not as an obligation, but as a bridge between the week and rest.
4. Add one small break a day during the week. Five minutes without a screen, when you are not solving anything. That way tension does not build in one direction all week.
5. Keep notes for three weeks on what happens. When the problem appeared, what the week before was like, how you landed. The pattern only shows up on paper — and these notes will also be useful to your doctor.

After doing this a few times, you may notice something else: that a soft landing is harder than it sounds. Because it asks you not to do something at four o’clock on Friday, even though you could. And this is where you see how strong the rule is that you have to keep going to the very end.

When the answer is not in the transition

I want to be clear here, because the idea of leisure sickness is appealing and easy to stretch too far.

Some weekends are simply weekends with a virus. If you have children at nursery or school, they bring viruses home regardless of the day of the week. If you have been around people all week, an infection simply shows up a few days later — and sometimes that is a Saturday. Not every Saturday cold is a message from your soul.

Recurring symptoms need a doctor. Frequent headaches, migraines, fevers, pain or fatigue that will not go away are a reason to see your GP, not to self-diagnose from a blog post. A psychological explanation only makes sense once the physical side has been checked — and even then it does not dismiss physical complaints as “all in your head”. I wrote about what it means when the results are fine but the body still hurts in “The tests are normal, but it still hurts”, and you will find a short explanation in the knowledge base under psychosomatics.

Sometimes you cannot learn a softer landing because the week is too heavy. If your workload is unbearable in the long term, no exercise will be enough. Then it is not about how you make the transition, but about a system that demands more of people than is possible. For questions about your rights at work, a trade union or the Labour Inspectorate (in Slovenia, Inšpektorat RS za delo) can help. Therapy can help you think about what you want to do, but it cannot replace change where change is needed.

And sometimes tiredness at the weekend is a sign of something else. If, alongside it, you notice that nothing brings you joy any more, that you are withdrawing from people, or that it is hard to get up even on days without obligations, talk to your doctor about it. It may be a sign of depression, which needs its own care.

Where therapy can help

In therapy we will not look for the cause of the fever. That is a doctor’s job. What we can look at together is what is happening around it: what role you have in your team, who leans on you and whom you are not allowed to burden, what would happen if you said no for once. We can look at where the rule comes from that rest comes at the end, when everything is done — and whether that rule still serves you today.

It often turns out that the tension a person carries all week has never been expressed in any way other than through the body. When they learn to put anger, tiredness or fear into words — to a colleague, a manager, a partner — the body has less need to speak for them. It also helps to see the tension in a longer arc: as chronic stress that builds up over weeks, rather than something that starts on Monday and ends on Friday.

If your Fridays are not hard because of illness, but because anxiety about the new week grabs you as early as Sunday afternoon, read Sunday anxiety: why the week grabs you before it has even begun. And if your holidays also pass in a tension you cannot put down, the post for you is The holiday where you can’t switch off: why rest is not a switch. If you recognise other signs that your system is running on reserve, have a look at Burnout is not laziness: signs your nervous system is asking for a break.

What to remember

• Leisure sickness is a description of a pattern, not a diagnosis. The study that named it was small and cautious — and so should your conclusion be.
• One explanation is that the transition from tension to relaxation is not neutral for the body: mobilisation eases and the signals the body has been holding back come to the surface.
• The pattern appears more often in people who are reliable and overcommitted, and who carry more of the tension in their team than others.
• In some systems, illness is the only permitted break. It is worth asking what would happen if you took it earlier.
• Have recurring symptoms checked by a doctor first. The psychological view complements the physical one; it does not replace it.