Grounding Sheets & Blue Light Blockers in Norway this Autumn

Grounding and Blue Light Blockers: Why September Is the Time

I've already got a blanket on me. Have you? The colours are beautiful, the mornings are crisp, the scenery is doing that thing it does in September where you think - actually, Norway is extraordinary. And then it's dark at 8pm and you're sitting under LEDs wondering why your brain won't slow down even though you're exhausted.

If you combine grounding sheets (jording laken) and blue light blocking glasses (blålysbriller) into your evening routine during the darker months, you give your body two things it is actively losing as the season shifts: its electrical connection to the earth, and the darkness signal your brain needs to produce melatonin properly. Research backs both approaches. Neither is complicated. And September - not December when you're already running on empty - is the right time to start.

What September Actually Does to Your Biology

In June, without even trying, your biology is getting what it needs. You're outside. Feet on grass, skin in the sun, natural light flooding your eyes at the right times of day. Your circadian rhythm is set. Your nervous system is grounded. You're sleeping well without doing anything particular about it.

Now think about what September takes away.

The light changes first. The solar arc drops. The days shrink. By the time October arrives many people are leaving for work in the dark and coming home in the dark. Your main light sources are now artificial - LED overheads, laptop screens, phone screens - all of which are heavily blue-shifted and contain almost no red or near-infrared spectrum. Your brain's master clock, which runs on light signals, is receiving confused information. It thinks it might still be midday. It's not.

Then there's the grounding piece, which I don't think gets talked about enough in the context of seasonal change. In summer you're barefoot constantly without thinking about it - grass, beach, warm stone. When did you last spend any significant time with bare feet on a natural surface? For most people in Norway that answer becomes "months ago" by October. Your body has lost its most direct source of free electrons.

These aren't abstract wellness concepts. Electron flow from the earth reduces oxidative stress and systemic inflammation. Natural light timing sets every hormonal rhythm in your body. When both disappear at the same time, the effects compound.

Grounding - What It Actually Does

Grounding (jording / earthing) is your body making direct electrical contact with the earth's surface. When you walk barefoot on grass or lie on the beach, free electrons transfer from the earth into your body. These electrons act as antioxidants - they neutralise positively charged free radicals that drive inflammation and oxidative stress.

A 2012 study published in the Journal of Environmental and Public Health by Chevalier and colleagues reviewed the evidence on earthing and found documented effects on sleep, pain, inflammation, cortisol rhythms, and the autonomic nervous system. The full paper is worth reading if you want to go deep: https://pubmed.ncbi.nlm.nih.gov/22291721/

A grounding sheet or mat recreates this connection indoors. They connect via a grounded outlet or a ground pin in the earth outside - I personally prefer the ground pin method, there's something about going direct to actual soil that feels right - and allow electron transfer while you sleep or sit at your desk. You're not replacing outdoor grounding. You're maintaining a version of the connection when outdoor grounding isn't available.

Which in Norway from September through April is... most of the time.

The sleep effects are the ones most people notice first. Your nervous system down-regulates more effectively. Cortisol, which should be dropping through the evening, does so more reliably when you're grounded. Dr. Jack Kruse has written extensively about the relationship between the earth's electrical field, electron flow, and the mitochondrial function that underpins everything from sleep quality to immune regulation. The grounding piece is not separate from the light piece - they're part of the same system.

(Yeah, I take a grounding sheet on holiday. I'm one of those. My daughter thinks I'm ridiculous but she sleeps on it too when I'm not looking.)

Blue Light - The September Problem Nobody Names

Here's the specific thing that happens in September that people don't quite join up.

In summer, even if you're on screens in the evening, the ambient natural light outside is still relatively bright, still present. Your total light environment has blue in it but also a lot of other things. Your brain gets a mixed signal. It's not ideal but it's not catastrophic.

In September the ambient light disappears. Now you're in a room lit entirely by artificial sources - LED bulbs, screens - and the dominant wavelength your eyes are receiving is blue. Blue light hits the melanopsin receptors in your retina and tells your brain it's daytime. Your brain believes it. Melatonin production gets suppressed. Your core body temperature doesn't drop the way it should. You feel wired but tired. Sound familiar?

This is not a minor inconvenience. A 2005 study by Cajochen and colleagues published in the Journal of Clinical Endocrinology and Metabolism showed that even short wavelength light exposure at low levels in the evening measurably suppresses melatonin, affects heart rate, raises alertness, and disrupts thermoregulation - all the things that are supposed to be going in the opposite direction as you prepare for sleep. Full study here: https://pubmed.ncbi.nlm.nih.gov/15955795/

Blue light blocking glasses (blålysbriller) filter out the short wavelengths before they reach your melanopsin receptors. Your brain gets the signal that darkness is coming. Melatonin production begins properly. Body temperature starts to drop. Sleep onset gets easier.

Even better - and I really do recommend this if you can manage it - pair the glasses with switching off most of your overhead lighting in the evening. Use warm low lamps instead, ideally with incandescent bulbs or orange-spectrum LEDs - which you can find in our circadian and sleep-healthy lighting range. Your skin receives similar signals to your eyes, and having your whole environment shift toward the warmer end of the spectrum in the two hours before bed creates a much more complete darkness signal. The glasses are a great start. The glasses plus a changed lighting environment is significantly better.

I'll be honest - even after years of knowing all of this, I still catch myself on my phone at 11pm occasionally without my glasses on and think "for goodness sake, I literally sell these." It's an ongoing thing. But awareness gets you most of the way there.

The Combination - Why Both Together

You could pick one. Grounding or blue light blockers. Either one alone does something useful. But September is when both problems arrive at the same time, and the compounding effect of addressing them together is genuinely more than the sum of the parts.

Grounding calms the nervous system and supports the cortisol curve through the evening. Blue light blocking gives your brain the melatonin signal it needs. Put them together and you're recreating, reasonably closely, the conditions your biology has been working with for most of human history - connected to the earth, in the dark, with a properly functioning hormonal wind-down into sleep.

On the news this week they were already talking about rising sickness rates as the season changes. Your immune system is closely tied to sleep quality. Your sleep quality is closely tied to melatonin. Your melatonin is closely tied to your light environment in the evening. It's the same chain, and you can influence it relatively easily.

Don't wait until you're exhausted and miserable in December to start thinking about this. Your body will thank you for getting ahead of it now.

The full grounding range - fitted sheets, half sheets, mats, pillow covers and ground connection cables - is all at https://lighttherapy.no/collections/harmony-pemf-and-grounding-materials. If you're not sure whether to start with a sheet or a mat, the sheet is almost always the better first choice - you're grounded for 7-8 hours without having to think about it.

The blue light blocking glasses are here: https://lighttherapy.no/collections/blue-light-blockers. There are four protection levels - clear for daytime screen use, yellow for late afternoon, orange for two to three hours before bed, and red for the final hour. If you're only getting one pair, orange is the most useful starting point for most people.

A Practical Evening Routine

This doesn't need to be complicated. Put your blue light glasses on two hours before you plan to sleep. Switch to low warm lighting in the rooms you're spending the evening in - the bedroom especially. Get onto your grounding sheet. That's genuinely most of it.

If you can get outside at lunchtime for even twenty minutes when there's still daylight, do that too. Not for the grounding particularly - shoes are fine - but because getting natural light into your eyes in the middle of the day anchors your circadian rhythm and makes the evening signals work better. Your biology uses light contrast - the difference between daytime and evening light signals - to set the clock. The brighter your day signal, the more effective your evening dark signal becomes.

And if you want to add red light therapy (rødlysterapi) to the morning, that's the full picture. Morning red and near-infrared to set the circadian clock and activate mitochondria, daytime outdoor light where you can get it, blue light glasses in the evening, grounded while you sleep. That's a complete seasonal light management protocol and it's what I actually do. The red light panel range is at https://lighttherapy.no/collections/red-light-panels if you want to explore that side of it too.

If you want to read more about how morning red light affects blood sugar and metabolic health - which connects directly to this seasonal picture - that's covered in detail here: https://lighttherapy.no/blogs/english/morning-red-light-therapy-and-blood-sugar-what-nobody-tells-you. And for how the blood pressure and nitric oxide connection fits in: https://lighttherapy.no/blogs/english/red-light-therapy-blood-pressure-norway.

This post is educational. None of this is medical advice. If you have sleep disorders or specific medical conditions, work with a healthcare provider.

FAQ

Do grounding sheets actually work? The evidence base is real, if still growing. A 2012 review in the Journal of Environmental and Public Health documented effects of earthing on sleep quality, pain levels, inflammation markers, cortisol rhythms, and autonomic nervous system function. The mechanism - free electron transfer from the earth reducing oxidative stress and calming the nervous system - is well established in physics even if the full biological implications are still being studied. Most people who use them consistently report improved sleep and reduced muscle tension within a week or two.

When should I start wearing blue light glasses in Norway? September is the right time. That's when ambient natural light in the evenings drops away and artificial light becomes your dominant evening light environment. The combination of shorter days and long evenings under artificial lighting is when blue light suppression of melatonin becomes a real nightly problem rather than an occasional one. Two hours before sleep is the minimum. Some people wear them from sunset onwards and notice a significant difference.

Hjelper jording virkelig med søvn? Forskning tyder på det. En gjennomgang fra 2012 i Journal of Environmental and Public Health dokumenterte effekter av jording på søvnkvalitet, smertenivåer, inflammasjonsmarkører og kortisolrytmer. Mekanismen er frigjøring av frie elektroner fra jorda som reduserer oksidativt stress og roer nervesystemet. De fleste som bruker jording konsekvent rapporterer forbedret søvn og redusert muskelstramhet innen en til to uker.

Can I combine grounding with red light therapy? Yes, and they work well together as part of the same approach to managing your biology through the Norwegian winter. Red light therapy in the morning addresses the missing solar spectrum and activates mitochondria. Grounding in the evening reconnects your electrical biology to the earth. They're addressing different aspects of the same underlying problem - modern life having disconnected us from the natural inputs our biology runs on. I use both daily.

Is there a difference between a grounding sheet and a grounding mat? Mostly one of practical use. A grounding sheet goes on your bed and gives you continuous grounding while you sleep - which is the longest consistent window you have and probably the highest value use. A grounding mat typically sits under a desk or on the floor and is used during the day when you're sitting working. If you're only going to get one, the sheet is usually the better starting point because the sleep benefit is the most immediately noticeable.

References: Chevalier G, et al. (2012) - Earthing: Health implications of reconnecting the human body to the earth's surface electrons. Journal of Environmental and Public Health. https://pubmed.ncbi.nlm.nih.gov/22291721/ Cajochen C, et al. (2005) - High sensitivity of human melatonin, alertness, thermoregulation and heart rate to short wavelength light. Journal of Clinical Endocrinology and Metabolism. https://pubmed.ncbi.nlm.nih.gov/15955795/