Why Is Britain So Tired? Mapping the Nation's Fatigue by Season and Region

In one sentence: Britain is asking about tiredness more than ever, and our analysis of UK Google Trends holds a genuine surprise about when and where, because searches for "why am I so tired" and "always tired" peak in early summer (June and July) rather than the dark of winter, Northern Ireland is the most tired nation by search interest, and NHS sleeping-pill prescribing is actually falling.

Tiredness is one of the most human complaints there is, and in the UK it has quietly become a national one. To see the shape of it, we tracked how often people in Britain type their exhaustion straight into Google, then set that curiosity next to what the NHS actually prescribes for sleep and what the ONS records about sickness and wellbeing.

The result is a "tiredness calendar" and a map of the four nations. Both tell a story that runs against the obvious one, because the country does not search about being tired when the nights are longest. It searches hardest when the days are.

Which part of the UK is the most tired, and how do we know?

Northern Ireland is the most tired part of the UK by search interest, followed by Wales, then Scotland and England. That is the clear verdict when you rank relative Google search interest for "why am I so tired" and "always tired" across the four nations of Great Britain.¹

The finding is consistent, which is what makes it trustworthy. Northern Ireland scores the maximum on both terms, and Wales is second on both, so this is not a quirk of one phrase.

Scotland and England are separated by a whisker, so treat them as joint lowest rather than clearly ranked. Values are relative interest (0 to 100), not absolute searches.¹

There is an important nuance here, and it is worth stating plainly. High search interest is not the same as high suffering, and Northern Ireland is a good example, because it also tends to report the highest personal wellbeing of the UK nations in ONS data.⁴ A nation can be curious, or simply a keen Googler, without being the unhappiest.

"I would be careful about calling this a misery map. What it really shows is which parts of the UK turn to a search engine first when they feel worn out. Northern Ireland leading the table, while also reporting strong wellbeing, is a useful reminder that a search is a question, not a diagnosis. The value is in what people ask next, and that is where this data gets genuinely helpful."

Yusra Serdaroglu Aydin, MSc RD, Head of Nutrition at Vivere

When is Britain most tired during the year?

Britain searches about tiredness most in early summer, peaking in June and July, and least in December. Averaged across recent years, both "why am I so tired" and "always tired" climb through spring, top out at midsummer, then fall away to their lowest point in the run-up to Christmas.¹

This is the study's most surprising finding. The gap is large, too, with "why am I so tired" running about 53% higher at its June peak than at its December low.

Isn't Britain supposed to be most tired in January?

That is the popular belief, but the searches do not support it. January sits mid-table for tiredness searches, well below the summer peak, and December is actually the quietest month of the year.¹

Winter tiredness is real, with shorter days and lower vitamin D levels, which is why the NHS advises adults to consider a daily vitamin D supplement in autumn and winter.¹² People just search about it less, most likely because feeling flat in the cold and dark feels normal rather than alarming.

One plausible reason is an expectation gap. In winter we expect to feel flat, so tiredness feels normal and prompts no question, whereas in bright, warm summer we expect to feel our best, so unexpected fatigue is jarring enough to send us searching.

Why do tiredness searches peak in summer?

Several everyday summer factors line up with the June and July peak, and each has a clinical basis. Hay fever is the clearest, because the NHS lists "feeling tired" as a hay fever symptom, notes that symptoms are usually worse between late March and September, and warns that some antihistamines can make you very sleepy.⁶

Light and heat matter too. Long midsummer days mean early sunrises and short nights, and warm, humid nights make good sleep harder to come by, both of which can leave people feeling under-rested even when they are in bed for the usual hours.

The spring clock change adds an earlier nudge. When the clocks go forward we lose an hour of sleep, and researchers at the NIHR Oxford Health Biomedical Research Centre note that it can take days, or even weeks, for the body to adjust, leaving us groggy and less focused in the meantime.⁸ In our data, searches do tend to tick up from February into March in most recent years, which fits that pattern.

"The summer peak surprised me at first, then it made complete sense. In clinic, late spring and summer is when hay fever, broken sleep from light and heat, and packed social calendars all collide. People expect summer to be their energetic season, so when they feel wiped out instead, they want an answer. That instinct to ask why is a good one, as long as the answer comes from a reliable place."

Yusra Serdaroglu Aydin, MSc RD

Is Britain actually getting more tired over time?

The searching certainly is. Interest in "why am I so tired" has grown around 2.8 times since 2011 and reached its highest levels yet in 2026, climbing steadily for more than a decade.¹ The single busiest month on record for that phrase was July 2023.

The more interesting movement is between the two phrases. As the chart shows, the declarative "always tired" has slipped since around 2018, while the questioning "why am I so tired" has surged past it, a shift from stating a fact to demanding a reason.

*2026 is a January to August average. "why am I so tired" has roughly 2.8 times its 2011 level; "always tired" peaked around 2018 and has since eased.¹

What is Britain actually asking about its tiredness?

Britain increasingly wants to know why it is tired despite sleeping, and what condition might be behind it. The fastest-rising related search is "why am I so tired even after 8 hours of sleep", which points to worries about sleep quality rather than sleep quantity.¹

Alongside it, people are pairing tiredness with specific medical possibilities. Rising and top related searches include the thyroid, iron deficiency, sleep apnoea, chronic fatigue syndrome, diabetes, anaemia and depression, as well as a strong cluster around pregnancy and the menstrual cycle.¹

The NHS backs up why this instinct to investigate is sensible. It lists common causes of persistent tiredness that span lifestyle, such as poor sleep, diet and inactivity, psychological factors such as stress and depression, and physical ones such as iron deficiency anaemia, an underactive thyroid, sleep apnoea, diabetes and low vitamin B12.⁵¹⁰

"The rise in 'tired even after 8 hours of sleep' is the search I care about most, because it tells me people have ruled out the obvious and are still stuck. That is exactly the point to see a GP rather than to keep guessing online. A simple blood test can pick up low iron, low B12 or a thyroid issue, and those are common, treatable reasons to feel drained. Please do not diagnose yourself from a search box, but do let it prompt the conversation."

Yusra Serdaroglu Aydin, MSc RD

How many sleeping pills is Britain actually taking?

Fewer than it used to, which is an important counterweight to the rising searches. Zopiclone, the most prescribed of the "z-drug" sleeping tablets, fell to about 4.31 million items in England in 2024, down 4% on the year before, and zolpidem fell about 7% to roughly 579,000 items.²

The most recent NHS data sharpens the picture. In June 2026 alone, about 361,000 z-drug items were dispensed across England, 317,000 of them zopiclone and 44,000 zolpidem, spread across more than 6,700 GP practices.¹⁴ That single month keeps the country on its long downward path for sleeping-pill prescribing.

So even as curiosity about tiredness climbs, the NHS is prescribing sleeping tablets more sparingly, in line with guidance. NICE recommends z-drugs only for the short-term management of severe insomnia, typically for no more than two to four weeks, because of the real risk of tolerance and dependence.⁷ The NHS makes the same point about zopiclone, advising that it is normally used for just a few days to a few weeks.⁹

England primary-care items. Scotland, Wales and Northern Ireland record prescribing through separate systems, so this layer is England only.²

Which parts of England prescribe the most sleeping pills?

The East of England prescribes the most z-drug sleeping tablets per head, and London the fewest. Adjusting the June 2026 figures for population, the East of England dispensed about 7.6 z-drug items per 1,000 people, roughly 49% more than London on about 5.1.¹⁴¹⁵

Read this as a prescribing map, not a tiredness league table. Rates per head reflect a region's age profile, levels of deprivation and local prescribing habits, so while Northern Ireland searches about tiredness the most, it is the East of England that reaches for a sleeping tablet the most within England. Feeling tired and being prescribed a sleep aid are not the same thing.

Combined zopiclone and zolpidem items from the NHSBSA English Prescribing Dataset for June 2026, divided by ONS regional population estimates. NHS commissioning regions are mapped to ONS regions, so per-head rates are indicative. The Midlands dispenses the most items overall yet sits mid-table per head, which is why the rate matters more than the raw count.¹⁴¹⁵

How much is tiredness costing Britain at work?

Feeling unwell keeps a lot of the country off work, though tiredness itself is rarely recorded as the reason. In 2025 an estimated 148.8 million working days were lost to sickness or injury in the UK, a sickness absence rate of 2.0% (unchanged from 2024), or about 4.4 days per worker.³

The recorded reasons matter for a tiredness study. Minor illnesses such as coughs and colds were the single biggest cause at 30.4%, and mental health conditions, which very often present with fatigue, accounted for 8.9%.³

There is a regional layer too. Sickness absence is highest in Yorkshire and The Humber, at about 2.4%, and lowest in London, at about 1.5%, which is a reminder that where you live shapes your working health as well as your search habits.³

"Sleeping tablets have their place for a short, tightly managed spell, but they were never meant to be a long-term answer to feeling tired, and the falling prescribing numbers reflect that. If your energy is a daily struggle, the durable fixes are unglamorous: protected, consistent sleep, daylight and movement, decent nutrition and getting any underlying cause checked. Those do far more heavy lifting than any pill, and they carry none of the dependence risk."

Yusra Serdaroglu Aydin, MSc RD

Where do NAD+ and energy fit into the tiredness picture?

NAD+ sits upstream of how your cells make energy, which is why it comes up so often in conversations about fatigue, but it is not a treatment for tiredness. NAD+ (nicotinamide adenine dinucleotide) is a coenzyme that every cell uses to turn food into usable energy, and the body makes it from the vitamin B3 (niacin) family.¹⁰

Here is the honest, regulated position on energy. The only authorised UK health claim in this vitamin family is that niacin contributes to normal energy-yielding metabolism and to the reduction of tiredness and fatigue, a claim about nutrition, not a cure.¹¹ For NAD+ supplements specifically, a 2025 review in Nature Metabolism found that they can raise circulating NAD+ levels, while clear functional benefits in people remain limited.¹³

So NAD+ is best understood as support for normal cellular energy and healthy ageing, not as a fix for fatigue. If you are curious about it, our guide to NAD+ and healthy ageing gives the balanced picture, the two formats are set out across the Vivere NAD+ range, and you can measure a broader marker of how you are ageing with our biological age test. Persistent tiredness, though, is a reason to see your GP first, not to reach for a supplement.

"I want to be really clear here, because this is where people get sold false hope. NAD+ is fascinating biology and it is central to how cells produce energy, but no NAD+ product treats or reverses fatigue, whatever a clinic's website implies. If you are considering it, treat it as a possible support on top of good sleep, food and movement, buy only from a regulated source, and get lasting tiredness properly checked. Fix the cause first, then think about the extras."

Yusra Serdaroglu Aydin, MSc RD

What does this mean for people in the UK?

The practical message is that tiredness deserves curiosity and a proper cause, not a quick fix. Britain is right to ask "why", and the most useful next step is usually a conversation with a clinician rather than a purchase.

How did we carry out this study?

We combined public search behaviour with public health data. From Google Trends for Great Britain we exported the full monthly interest series for "why am I so tired" and "always tired" (2004 to 2026), plus the regional breakdown by nation and the top and rising related queries for each.¹

We then calculated annual averages, long-term growth and each phrase's peak, and built the seasonal calendar from monthly averages over the seven complete years from 2019 to 2025. We set that curiosity against NHS z-drug prescribing in England, including practice-level dispensing for June 2026 from the NHSBSA English Prescribing Dataset expressed per head using ONS regional population estimates, and against ONS sickness and wellbeing data.²³¹⁴¹⁵ All clinical explanations were sourced separately to the NHS, NICE, GOV.UK and peer-reviewed research, and the analysis was reviewed by a registered dietitian.

What are the limitations of this data?

Search data is powerful for spotting national mood and timing, but it has real limits, and being clear about them matters on a health topic. The table below sets out the main ones and how we handled each.

Frequently asked questions

Final Thoughts From Our Experts

"If you take one thing from this study, let it be that Britain has started asking a better question. We are moving from flatly saying we are always tired to asking why we are so tired, and that shift from resignation to investigation is genuinely healthy. The data holds a lovely surprise, too, that we search about tiredness most in bright summer rather than dark winter, most likely because that is when feeling drained catches us off guard. My job is to keep that curiosity pointed somewhere useful. Sleeping tablets are a short-term tool, not a lifestyle, and their falling use is a good sign. NAD+ is fascinating cell biology, but it supports energy metabolism rather than curing fatigue, so treat it as an extra, never a substitute for the basics. And the basics still win: protected sleep, daylight, movement, good food, and getting lasting tiredness checked by your GP, because the most common reasons to feel exhausted, low iron, a thyroid problem, poor sleep quality, are the ones a simple conversation can start to fix. Ask why, then ask a professional. That is how curiosity turns into real energy."

Yusra Serdaroglu Aydin, MSc RD, Head of Nutrition at Vivere