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Cryptochrome Protein: Sleep, EMF, Blue Light, and Earthing
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Cryptochrome Protein: Sleep, EMF, Blue Light, and Earthing
To put it simply, EMF and blue light interfere with something in our body called cryptochrome protein; and the fix is grounding, avoiding blue light, and turning off EMF sources such as WiFi at night. I find this fascinating and my recent experience with grounded bedsheets has both my wife and I amazed at how much better we are sleeping.
The Earth’s Role in Circadian Regulation: Grounding to Set Daily Cortisol Pattern
Laura Koniver MD
Published: 26 Aug 2025
https://intuition-physician.com/wp-content/uploads/2025/08/MCRR-25-756.pdf
“Recent studies suggest that the SCN may receive and integrate geomagnetic signals via magneto receptive structures in the retina or through cryptochrome proteins, which are sensitive not only to light but also to weak electromagnetic fields [7]. In fact, cryptochromes—essential to circadian timing—have been shown in animal models to be responsive to static and oscillating magnetic fields at frequencies overlapping the Earth’s natural resonances [8]. This supports the hypothesis that our circadian pacemakers are not exclusively photic-dependent but may also be co-regulated by Earth’s electromagnetic architecture. Direct contact with the Earth, a practice known as grounding or earthing, may influence cortisol rhythms in a significant and clinically relevant way. This article explores historical and contemporary evidence that grounding supports the biological clock via entrainment of cortisol rhythms and restoration of autonomic balance.”
How do homing pigeons know their direction? They make better use of cryptochrome proteins than we do (located in the retina). They literally can see the magnetic fields of the earth.
Cryptochrome proteins are in our bodies (retinas) as well and they are especially helpful for us with respect to sleep and circadian rhythm, which is so critical to our health. I was very curious and dug to learn how these interact with magnetic fields. It’s more technical than I understand but it’s a quantum level effect with “radical pairs” (see the WIKI on Cryptochrome Protein).
Why I was curious about the magnetic field detection is that EMF literally means Electro-Magnetic Fields. I reasoned that if we have cryptochrome proteins that are so sensitive that a bird can see the weak magnetic fields of the Earth, then what does EMF do to our cryptochrome proteins? No one has done this research yet, but we can ask a different question:
Question to Copilot: “Are there any studies on sleep quality and exposure to EMF/RF?”
Answer: https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2024.1481537/full
Does radiofrequency radiation impact sleep? A double-blind, randomised, placebo-controlled, crossover pilot study
28 October 2024
“Sleep quality was reduced significantly (p < 0.05) and clinically meaningful during RF-EMF exposure compared to sham-exposure as indicated by the PIRS-20 scores. Furthermore, at higher frequencies (gamma, beta and theta bands), EEG power density significantly increased during the Non-Rapid Eye Movement sleep (p < 0.05).”
From Wikipedia: “Studies in animals and plants suggest that cryptochromes play a pivotal role in the generation and maintenance of circadian rhythms.”
We can conclude that EMF from Wi-Fi does indeed impact our quality of sleep and it is highly likely that it is interfering with our very sensitive cryptochrome proteins in our retinas.
What is even more interesting is that what charges up the paired radicals in cryptochrome proteins is blue light. With EMF in one hand, this is the other hand to the problem. I think we’ve all heard that blue light isn’t good for us before sleep, and cryptochrome proteins is the reason.
So, what can we do?
1. Avoid blue light (already many of us know this). Set your computers and cell phones to use night mode.
2. Turn your Wi-Fi off at night. This is easier than you think. Some Wi-Fi routers allow you to set a schedule.
3. No cell phones or wireless devices near you while you sleep. Leave them out of the bedroom.
4. Use grounded bedsheets. The grounding will not only connect you with the circadian rhythm of the earth but also shunt some of the EMF radiation around you to ground, so it doesn’t build up potential in your body.
My wife and I just started using grounded bedsheets as of 2 weeks ago and our sleep quality has improved significantly. We are both saying to one another in the mornings “I didn’t get up to use the bathroom last night, did you?” It’s that much of a difference.
I also have a recommendation if you’re looking at buying grounded bedsheets. Watch this video first: https://youtu.be/CE7OA327Pro . It will illustrate to you that the ground wire in your wall, because it travels the distance of your power wires, picks up on the 60Hz AC. It will also illustrate how Wi-Fi influence can be eliminated via the ground. Further, get steel grounded bedsheets, not silver grounded ones. If you read the reviews on Amazon you’ll see a number of people who said after so many washings the silver was no longer functioning as a ground.
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6 Replies
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Thank you @jrgerber for your topic. It was an interesting read and I have started turning off my hotspot at night now which deactivates my wifi.
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👍 Me too. My wife has forced me (or she would say suggested) to leave my phone out of the bedroom, and last night I turned off (airplane moded) my kindle. Now I’ve got to work out how to sleep the wifi too.
AI info – “A Kindle in airplane mode significantly reduces EMF (electromagnetic field) emissions, especially those related to wireless communication like WiFi and Bluetooth, since these features are disabled in this mode. However, the device still emits trace amounts of EMF from its internal circuits and screen, as all powered electronic devices do, but this is much lower than when wireless features are active. This residual emission is generally considered negligible and much less than the exposure from an active cell phone, tablet, or similar device.”
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@jrgerber An olive farmer here in southern Spain was laughing at me yesterday morning as I walked barefoot while walking the dog over sand/gravel paths between the currently fruit laden, Olive trees. He asked I think, “What about thorns and sharp stones?” I tried to explain about grounding but didn’t really succeed. Anyway, he just smiled and shook his head. So I failed at that simple Spanish. Now I’ve got to find him again and explain – cryptochrome proteins.
Just saying, you’re not making my life any easier. More healthy though. Thanks for all of this. Great info.
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🤣 That sounds like a delightful interaction you had and a wonderful day. I would have struggled with that one based on my limited Spanish… I can hear myself saying “dentro del cuerpo”, “es como relampago”, “ayuda con la inflamacion” and “muy saludable y cientifico” trying to piece the ideas together and getting funny looks from a Spaniard.
I got to level B1 Spanish during 2020 along with picking up a new programming language, but then the mRNA set me back severely mentally. The simple stress of learning anything new had become too much. Fortunately, with all the help I’m receiving through IMA and its affiliates I’m getting back to my old self this year and I’m confident I will be back to 100% in 2026 at the rate things are going.
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Ah, @jrgerber , you have me laughing at the Spanish and very hopeful for you for 2026. Great note – thank you.
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