Dr. Jack Kruse: Blue-blocking glasses, and much much else

[RunningDeer]

"Blue light, more than any other type of light, suppresses the release of the sleep hormone melatonin in the body. Melatonin regulates our circadian rhythm, which is our sleep-wake cycle. Human eyes are sensitive to blue light as an indicator to sleep or remain awake. If exposure to blue light is constant, then the brain does not receive a message from the eyes to release melatonin. The body then chooses to remain awake or only sleep lightly."

"Blue light emitted from electronics may cause diseases such as "dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality." "

Blue Light Concerns

Technology has made our lives much more efficient and enjoyable. From laptops to HD Televisions and smartphones, technology has firmly established itself as an indispensable convenience in our world. Living without them would be unthinkable.

Unfortunately, these modern miracles are not without their drawbacks. Our human biology hasn’t evolved at the same rate our technology has. Our bodies still operate under the assumption that all light is natural light. What does light have to do with electronics and our bodies? Everything.

The Science of Light

Not all light is created equal. Just look at a rainbow, and you can see that visible light varies. All light is made up of a spectrum of distinct waves. The human eye picks up light wavelengths from 380 to 700 nanometers. The larger the number, the weaker the light and the longer and slower the wavelengths.

Red, for example, exists on one end of the spectrum and is made up of low energy waves. Red tends to be soothing because of its low waves. However, red light isn't conducive to working or daily life. Yellow light is in the middle of the visible light spectrum. The sun, the earth's primary source of energy, emits more yellow light because of its surface temperature. Blue, on the opposite end of the light spectrum of red and with much more energy than the sun's bright yellow light, has the highest energy frequency of them all. Blue light wavelengths are shorter and more frequent, consisting of 415 to 495 nanometers. Compare this to red's 600 to 700 nanometers, and blue light's wavelengths are by far quicker and stronger.

Blue Light and the Human Body

Blue light is everywhere, and it has a very natural purpose for the human body. Though primarily yellow, the sun also emits natural blue light. This blue light provides the human body with energy and stimulation. It improves reaction times, puts us in a good mood, and speeds up our thought process. Our sleep-wake cycle is tightly regulated by blue light. The jet-lag, which the body feels when traveling through time zones, is a side effect of the blue light disruption into the sleep-wake cycle.

Artificial sources of blue light also exist. The artificial light from the technology we hold near and dear, such as smartphones, laptops, and energy-efficient light bulbs, to name a few, all emit high amounts of blue light. Many of today's electronic devices use LEDs, to strengthen clarity and brightness on screens and keyboards. LEDs emit very high amounts of blue light.

Electronics and artificial light increase human exposure to artificial blue light, with serious consequences. New to our evolutionary history, technology impacts our mental and physical health in ways that our bodies have yet to develop firewalls against.

Blue Light and Your Eyesight

According to a 2016 report published in the International Journal of Ophthalmology, states blue light emitted from electronics may cause diseases such as "dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality."

High-intensity blue light can come from any light source, including the sun. Consistent exposure to blue light can potentially damage the eyes.

Blue Light Differences: Day Versus Night

Sunlight is the primary source of blue light. However, our bodies have evolved to accommodate and follow the light cycle of the sun. The artificial blue lights from electronics and lighting is a different story.

During the day, humans are exposed to additional blue light from indoor artificial lighting and electronics. Much of the exposure is from directly facing computer screens, televisions, tablets, and smartphones, where the blue light flows directly to our eyes.

As the day progresses, people remain exposed to artificial lighting and electronics up until bedtime. This exposure can prevent people from getting adequate sleep and contribute to a decline in productivity and mental wellbeing. And, to make things even worse for some people, blue light can filter in during their sleep from light pollution.

Blue Light and Sleep

Research indicates that blue light from electronics can severely impact sleep. Sleep is one of the most important ways for the body and mind to recover and heal. According to the National Institutes of Health, sleep deficiency is a consistent lack of sleep. Sleep deficiency can be a risk factor for disorders like depression, diabetes, and obesity.

According to Harvard researchers, blue light, more than any other type of light, suppresses the release of the sleep hormone melatonin in the body. Melatonin regulates our circadian rhythm, which is our sleep-wake cycle. Human eyes are sensitive to blue light as an indicator to sleep or remain awake. If exposure to blue light is constant, then the brain does not receive a message from the eyes to release melatonin. The body then chooses to remain awake or only sleep lightly.

Not all Blue Light Blocking Glasses Are Created Equal, Which Blue Light Glasses Are The Best? full article

[Vicus]

First impressions

Yesterday I got my anti blue light glasses...

Just half hour use I noted a complete relax in front my computer...everything blue turned green...

One hour later without glasses was like I'm bade in blue light! (my PC room has a dark blue carpet but orange painted walls)

I makes a long night with games and a TV series and it was like : so what? PERFECT!
Later I sleeps like a baby (like always...)

One interesting experiment happens when you change all variants from Forum colors Display... for me my favorite is Avalon Blues...the blue turned greenish ...

The color from my glasses is dark yellow/red,looking outside trough the window (a sunny day) is everything "yellow",without
glasses is "aggressive" blue!

I can just recommended the glasses for everybody working/playing/ watching/writhing/reading from any display kind.

[RunningDeer]

Not all Blue Light Blocking Glasses Are Created Equal,
Which Blue Light Glasses Are The Best?

The Truth About Clear Lens Blue Light “Blockers”

Here’s the truth about clear lens blue light blocking glasses that help you fall asleep—there is no such thing! Clear lenses do not block the kind of light that keeps you from falling asleep. These should not be called blue blocking glasses at all as they only filter blue light, not block it. To truly block blue light it requires colored lenses to fully block its light waves. Clear lens blue light "blockers" have nothing to do with keeping insomnia inducing blue light from reaching your eyes, no matter what the companies say. It’s about science, and the science of light waves prevents clear lenses from blocking all blue light that interferes with melatonin release. Period. 

What these clear lens blue light “blockers” do is filter the blue light, mainly to prevent eyestrain. Their lenses do not filter out the blue light that prevents you from falling asleep. To filter out that wavelength of blue light, the lenses would have to be colored lenses, preferably amber or red. The true name for these type of daytime glasses is computer glasses or blue light filter glasses.

Some companies go to great lengths to try to prove that their clear glasses block blue light by using light demonstrations from a pen or screen. The light source in these demonstrations only emits a different wavelength of light, usually violet. This light is not the same light present in most artificial lighting and LEDs. These companies are deliberately misleading the public and misusing science. Do your homework when purchasing blue light blockers.


Cheap and Ineffective Blue Light Filter Glasses

Our BlockBlueLight ScreenTime computer glasses filter 50% of blue light across the entire blue light spectrum, making them far superior to less expensive glasses. Due to the rise in popularity for blocking blue light there are now many companies in the market offering inexpensive clear lens blue light glasses. However these glasses are useless and a waste of money. Most of these cheap glasses only filter 10-20% of blue light and do not help to manage sleep or protect eyesight in any significant way.

During the day its important for us to significantly reduce our blue light exposure, but not block it completely. As mentioned earlier moderate levels blue light during the day is important for health and keeping us awake and alert, however the levels we are consuming is far to high and completely unbalanced with the rest of the colour spectrum. We need to filter blue light across the entire spectrum by about 50% to bring this more into balance, this is the most effective amount to filter by during the day; filtering anymore will leave you feeling tired and unmotivated and start to tell your brain its nighttime,  and filtering any less will give you headaches, eye strain and leave you feeling anxious. 

Optometrists may even offer blue light "blocking " coating on prescription lenses. Unfortunately, the extra cost for this coating is unwarranted and ineffective. Most optometrists may offer the coating, but don’t know any specifics about what range and percentage of blue light the layer might block. The fact is, the coatings do not block blue light from the entire blue light spectrum or the part of the spectrum the matters the most.

Many blue light filter glasses claim to block a large percentage of blue light. However, the range of blue light they filter matters greatly. For example, most electronic devices emit light at their most potent wavelengths of about 440-460 nanometers. A majority of cheaper clear blue light blocking glasses and coatings only filter blue light in the 380-420 nanometer range. This limitation in range means light from electronic devices (at 440-460 nanometers) are allowed to pass through, making the glasses useless.

All blue light, which includes sunlight, LEDs, and other electronic devices, are within the wide range of 400 to 500 nanometers. For blue light filtering glasses to be truly useful, they must filter blue light over the entire blue light range. BlockBlueLight lenses from our daytime range filter blue light over the whole 400 to 500 nanometer blue light spectrum. More specifically they filter 50% of blue light at 455 nanometers, this is where the most energetic, damaging light emitted from screens, LED’s, and other modern artificial lighting. The majority of other blue light filter glasses available will filter 0% at 455nm.

complete article with links & references

[RunningDeer]

Danny Jones: "I’m fascinated with this whole health, mitochondria rabbit hole that I’ve fallen down since Jack came on here."

Side note: Dr. Alexis Cowan blue light glasses are just like mine.

Light Biologist: WiFi Radiation & Artificial Light are Deadly | Dr. Alexis Cowan (2:46:00)

• October 28, 2024
• Danny Jones
• 931K

Dr. Alexis Cowan is a Princeton-trained PhD specializing in metabolic physiology, mitochondrial medicine, and light biology.

Source: https://youtube.com/watch?v=TE5k81SaXAA

OUTLINE

00:00 - Mitochondria

08:47 - Effects of blue light during pregnancy

19:34 - America's health crisis

21:51 - POM-C

34:05 - The human body creates light

38:12 - The sunlight MYTH

42:07 - Sunscreen, sunglasses & skin cancer

53:45 - Geographical latitude influences health

01:05:55 - Fasting

01:10:54 - Nicotine

01:15:04 - Methylene Blue

01:19:42 - Oral health & olive oil

01:25:39 - Wifi, EMFs & 5G

01:38:28 - Best mitochondrial medicine habits

01:50:38 - Most important meal of the day

01:53:23 - How technology is killing us

01:58:59 - Light pollution

02:11:28 - Why you can't trust doctors

02:16:55 - Crystals

02:26:56 - The Adderall crisis

02:32:52 - Supplements

02:36:53 - Bryan Johnson's anti-aging protocol

02:46:35 - False medical literature

[QueenRia]

Posted by RunningDeer (here)
I use DayMax Glasses when I’m on the computer. They eliminating 100% of the harmful blue light. And switch to Nightfall Blue Blocking Glasses

I just ordered Nightfall Blue Blocking Glasses from the link you provided! 😀 Thank you again RunningDeer for the link and your posts here, you saved me days or even weeks of research.

I'm probably going to have to pay huge import fees on top of that because I'm in Germany right now and had to order from Brexit-UK-blockbluelight. 😫 I would have loved to order some of their lightbulbs and reading lights as well, but with the fees and taxes there was no way... 😬
I also searched online for possible EU-vendors that offer high quality blue blocking products - but couldn't find any I found trustworthy. And none of my German speaking health groups on Telegram seem to have any discussions or recommendations on the Blue Light issue! 😳
On Amazon there are a lot of cheap ones, like 1/4 the price of blockbluelight. But from the articles you posted here I don't trust them; I need something that works.

This could really make a huge difference in my life. There is one review on the blockbluelight-Nighfall glasses that I can 100% identify with, she says:

"I have had sleep issues for decades. Gradually getting worse and worse to the point that I cannot plan or do anything much, as how much I can do in a day depends on how much sleep I got the night before. [...] Some people may be able to function on that amount but I never have been able to. I was just a zombie most of the time. Years wasted because of lack of sleep!"

This could have been written me! She says her sleep has been improving significantly with the Nightfall glasses, so I can't wait to try that!! I will let you guys know how it goes once I get them! 😀

[RunningDeer]

Posted by QueenRia (here)

Posted by RunningDeer (here)
I use DayMax Glasses when I’m on the computer. They eliminating 100% of the harmful blue light. And switch to Nightfall Blue Blocking Glasses

I just ordered Nightfall Blue Blocking Glasses from the link you provided! 😀 Thank you again RunningDeer for the link and your posts here, you saved me days or even weeks of research.

I'm probably going to have to pay huge import fees on top of that because I'm in Germany right now and had to order from Brexit-UK-blockbluelight. 😫 I would have loved to order some of their lightbulbs and reading lights as well, but with the fees and taxes there was no way... 😬
I also searched online for possible EU-vendors that offer high quality blue blocking products - but couldn't find any I found trustworthy. And none of my German speaking health groups on Telegram seem to have any discussions or recommendations on the Blue Light issue! 😳
On Amazon there are a lot of cheap ones, like 1/4 the price of blockbluelight. But from the articles you posted here I don't trust them; I need something that works.

This could really make a huge difference in my life. There is one review on the blockbluelight-Nighfall glasses that I can 100% identify with, she says:

"I have had sleep issues for decades. Gradually getting worse and worse to the point that I cannot plan or do anything much, as how much I can do in a day depends on how much sleep I got the night before. [...] Some people may be able to function on that amount but I never have been able to. I was just a zombie most of the time. Years wasted because of lack of sleep!"

This could have been written me! She says her sleep has been improving significantly with the Nightfall glasses, so I can't wait to try that!! I will let you guys know how it goes once I get them! 😀

I will let you guys know how it goes once I get them! 😀

Yay QueenRia! Yes, please keep us posted. I hope they work for you. A good night sleep priceless. I switch from my day blocking to night blocking glasses two to three hours before bedtime. They work. I quickly fall off to sleep.

What I figured out is when you unsubscribe from their emails, they’ll honor your request and send along a 15% discount in case you’ve forgotten something. So my last couple of items were with the discount. I considered the natural spectrum light bulb with winter coming and all, but I decided to purchase the Full Spectrum Lamp because I can move it where I need to rather than move a bulb from one room to the next. (It's oo costly to replace all the bulbs.)

The lamp is designed like the Full Spectrum Light bulbs where you transition from dawn to dusk. For instances, you don’t keep the natural day light on at night because you're signaling the body for sleep time.

Full Spectrum Lamp:

• FULL SPECTRUM DAY MODE: Promotes positive mood, increases stable energy and sense of wellbeing. Replicates natural sunlight.
  ...
• MIXED MODES: 3 modes that provide different levels of a warm low blue light option which replicates the same light during sunrise and late afternoon / sunset
  ...
• EVENING MODE: 100% no blue light sleep friendly amber light, warm and relaxing candle light feel.
  ...
• NIGHTLIGHT MODE: Red night light function to use late at night or in the middle of the night with no sleep disturbing light

[Mike]

Posted by QueenRia (here)

Posted by RunningDeer (here)
I use DayMax Glasses when I’m on the computer. They eliminating 100% of the harmful blue light. And switch to Nightfall Blue Blocking Glasses

I just ordered Nightfall Blue Blocking Glasses from the link you provided! 😀 Thank you again RunningDeer for the link and your posts here, you saved me days or even weeks of research.

I'm probably going to have to pay huge import fees on top of that because I'm in Germany right now and had to order from Brexit-UK-blockbluelight. 😫 I would have loved to order some of their lightbulbs and reading lights as well, but with the fees and taxes there was no way... 😬
I also searched online for possible EU-vendors that offer high quality blue blocking products - but couldn't find any I found trustworthy. And none of my German speaking health groups on Telegram seem to have any discussions or recommendations on the Blue Light issue! 😳
On Amazon there are a lot of cheap ones, like 1/4 the price of blockbluelight. But from the articles you posted here I don't trust them; I need something that works.

This could really make a huge difference in my life. There is one review on the blockbluelight-Nighfall glasses that I can 100% identify with, she says:

"I have had sleep issues for decades. Gradually getting worse and worse to the point that I cannot plan or do anything much, as how much I can do in a day depends on how much sleep I got the night before. [...] Some people may be able to function on that amount but I never have been able to. I was just a zombie most of the time. Years wasted because of lack of sleep!"

This could have been written me! She says her sleep has been improving significantly with the Nightfall glasses, so I can't wait to try that!! I will let you guys know how it goes once I get them! 😀

I ordered some too. I think they should make Paula a paid ambassador

[RunningDeer]

Visible light, UV, and IR radiation affect all life on Earth in many ways, including:

• Sleep/wake schedule: Visible light affects our circadian sleep/wake cycle.
• Digestion, hormones, and body temperature: Visible light affects digestion, hormones, and body temperature.
• Vitamin D production: UV light affects the production of Vitamin D.
• Cellular energy production: IR radiation affects cellular energy production.

I’ve added another behavioral change. Not only am I sitting at sunrise, it’s at sunset as well. I should clarify where the sun sets, the trees cover the mountainous hills westward. So it’s more like the late afternoon sun. According to Dr. Jack, those are the most potent times for the UVA rays. UVB rays are from 11-2ish. (There are apps to assist in the ranges for your area.) See below for UVA & UVB benefits.

I’m amazed how in just a few short weeks the sun has changed it’s position. So rather than sitting at the kitchen door, I’m in the living room for both sunrise and sunset.

......

UVA rays have several benefits, including:

• Vitamin D production: UVA rays help the body produce vitamin D, which is essential for human health. Vitamin D helps the body absorb calcium and phosphorus from food, and it's important for bone development. 
• Improved cardiovascular health: UVA rays can improve cardiovascular health by reducing blood pressure and increasing blood flow in the forearm. 
• Improved mood: UVA rays can improve mood by releasing endorphins. 
• Antimicrobial effects: UVA rays can have antimicrobial effects. 
• Neurotransmitter: UVA rays can act as a neurotransmitter. 
• Anti-inflammatory effects: UV light can treat inflammatory skin conditions like eczema and psoriasis.

Ultraviolet-B (UVB) rays have some health benefits, including:

• Vitamin D production: UVB rays trigger the production of vitamin D in the skin, which is important for bone and muscle health, immune function, and calcium and phosphorus absorption. 

• Skin conditions: UVB rays can be used in phototherapy, a light therapy treatment for skin conditions like eczema, psoriasis, and vitiligo. 
• Tanning: UVB rays can cause delayed tanning, which increases melanin in the skin and acts as a sunscreen. 

• Multiple sclerosis: UV exposure can suppress symptoms of multiple sclerosis. 

• Cardiovascular health: UV exposure can generate nitric oxide, which may improve cardiovascular health and reduce blood pressure. 

• Mood: UV exposure may improve mood by releasing endorphins.

Nitric oxide:

Nitric oxide is a gas that's a combination of one part nitrogen and one part oxygen, and it has many important roles in the body: 

• Chemical messenger: Nitric oxide is a chemical messenger that sends signals to help with many bodily functions. 


• Vasodilator: Nitric oxide relaxes blood vessels, which allows more blood, oxygen, and nutrients to flow through the body. 


• Neurotransmitter: Nitric oxide acts as a neurotransmitter. 


• Bronchodilator: Nitric oxide acts as a bronchodilator agent. 


• Radical scavenger: Nitric oxide acts as a radical scavenger.

Nitric oxide is produced by the body from compounds in food, and it's found in every organ. The body also produces nitric oxide in the nose and sinuses when you breathe through your nose. 

Too little nitric oxide can lead to endothelial dysfunction, which can damage cells and increase the risk of cardiovascular disease.

Symptoms of low nitric oxide include:

• Fatigue
• Erectile dysfunction
• Elevated blood sugar
• High blood pressure
• Poor wound healing
• Muscle soreness
• Memory loss

You can boost your body's production of nitric oxide by eating a balanced diet that includes leafy greens. Avoiding processed foods, fried foods, and cooking oils can also help. 

Nitric oxide is also used as a medicine to treat respiratory failure in newborn babies. It's inhaled through a breathing machine (ventilator) and works by relaxing the muscles in the lungs to widen blood vessels. 

[RunningDeer]

Posted by Mike (here)
I ordered some too. I think they should make Paula a paid ambassador

Hee-hee.

They're quick to ship your order. As I mentioned to Mike, the only drawback is the company is in Australia so the order takes 7-10 business days to the East Coast US. Which means it's two weeks because you count the weekends.
Apologies if I stated the obvious.

[Vangelo]

I recently installed this blue light blocker on my laptop and it seems to have helped my sleep quality.

Note: I wanted to thank the person who originally posted this link but could not find it here on Avalon.

f.lux download - Windows Only

I have also sent an email to the vendor asking if they have an iPhone app as well.

[RunningDeer]

Posted by Vangelo (here)
I recently installed this blue light blocker on my laptop and it seems to have helped my sleep quality.

Note: I wanted to thank the person who originally posted this link but could not find it here on Avalon.

f.lux download - Windows Only

I have also sent an email to the vendor asking if they have an iPhone app as well.

Thanks for the info, Vangelo. Dr. Jack mentioned f.lux and cautioned (IIRC) it's not 100%.

From BlockBlueLight.com.

Blue Light Phone Filters

Installing a blue light filtering app on your phone is very helpful. Not all apps can work intuitively or provide effective protection without sacrificing visibility during the day.

If this is the case with your chosen app or you just don’t want to add another app to your phone, check out our blue blocking screen filters for iPhones. These screen filters also serve as screen protectors while blocking the blue light from your phone at all times without compromising on visibility.

Other Tips to Reduce Blue Light Exposure

• Set your computer screen colours to a warmer setting
• Adjust the angle of your computer to prevent glare
• Take frequent breaks from your computer, preferable every 20 minutes to focus on something further away for 20 seconds or so
• Go for a walk or sit in a room that makes use of natural light during longer breaks

 

The F.lux Blue Light Exposure Protection App
(What You Need to Know Before Downloading It)

(source + product links)

Most people today use computer and mobile phone screens as if there no consequences. But there are some of us who have found what seems like a useful way to combat its effects – the f.lux blue light filter app.

Using computers, television and mobile phone screens all the time can lead to eye strain and pain in your eyes because you’re constantly exposed to blue light. Our monitors expose all of us to the full spectrum of light wavelengths, so you can see blues and greens (cool colours) as well as oranges and reds (warm colours).

The f.lux blue light filter app, however, appears to be a very convenient way to reduce our exposure to blue light. All you really have to do is activate the app, and it changes the total colour spectrum that is emitted from your computer’s screen.

While there are many ways that we can combat blue light and its effects, is the f.lux blue light exposure app one of them? Below, we’ll look into f.lux, how blue light works, and whether the app is a useful tool to mitigate its harmful effects.
 
First, what is blue light and how does it affect human health?

Before we talk about f.lux in any further detail, it is useful to know a little bit more about blue light and how it can affect our health. Blue light is actually a type of artificial light, emitted from electronic devices like phones, laptops, televisions, computers and tablets. Blue light has the effect of boosting our alertness and helping us be productive, but too much of it is never a good thing.

That’s because blue light is an a type of light with a wavelength of 380-500 nanometres (nm). It has a shorter wavelength which means it can scatter much more easily. The effects of looking at blue light for too long can cause serious health problems in human beings such as heart disease and cancer. It can also cause sleep disorders like insomnia, sleep phrase disorder (DSPD). It may also cause ‘eye strain’ and other forms of eye damage like retinal degeneration.
 
What is f.lux and how does it work?

F.lux is a popular computer application that markets itself as an app whereby you can lower the level of blue light on your screen, thereby acting like the natural variations of regular daylight. You download the app on your computer (both on PC and Mac).

The f.lux app changes the colours on your screen so that the blue colour sub-pixels in the display of your LCD screen quite literally shut off. Usually, your screen will be made up of pixels, each of which has a sub-pixel of different colours being red, blue and green. These sub-pixels can be turned off individually.

F.lux is adjusted to the position of the sun in sky. When the sun sets, the app automatically changes the colour on your screen so that it is a sort of reddish amber. However, if you activate f.lux to its most extreme, you can shut every single blue sub-pixel off.
 
Does f.lux really filter out blue light?

Yes, it does. It is able to filter out the blue light from screens by shutting off the blue sub-pixels within the pixels of your screen. These pixels don’t actually emit light – rather, they ‘filter’ the light.

Pixels, however, will always leak some light. This will even be the case when they are completely turned off (a phenomenon known as LED ‘backlight bleeding’).

This means that f.lux cannot filter out all blue light.

What about other blue light filter apps, like Night Shift?

Night Shift is an app that was introduced by Apple. It automatically adjusts the colours on your iPhone’s screens to warmer hues when the sun goes down and the sky becomes dark.

But it still does not completely resolve the problem of blue light being emitted from our screens and affecting our health.
Below, we’ll explain a little more why this is the case.
 
Why the f.lux blue light app (and others) are not ideal blue light solutions

While blue light solutions like the f.lux blue light app are free and easy solutions, they are not ideal. And it all stems down to the fact that they do not act as a proper filter to remove all blue light.

The f.lux app simply reduces blue light, but it does not completely block it out. This is because all screens will still suffer from ‘backlight bleeding’ – this is light metaphorically ‘bleeding’ from the backlight and the edges. F.lux cannot pick this up – nor can Night Shift or other apps.

The consequences of this are that the f.lux app and Night Shift functions still do not solve the problem of regular blue light exposure. All the blue light in your devices will continue to disturb your circadian rhythm (i.e. that internal clock running inside your brain that cycles between being alter and being sleepy) and also cause you ‘eye strain’.

Using our phones and watching a Netflix binge on a regular basis really does disturb this rhythm. The result is we struggle to focus and sort of feel ‘out of it’. If you suffer from sleep deprivation, the consequences are suffering from:

• Anxiety
• Obesity
• Diabetes
• High blood pressure
• Heart disease
• Cancer

We therefore suggest you find alternatives to f.lux and other blue light filter apps. The good news is that there are other ways to protect your eyes, which we’ll outline in more detail below.
 
How to protect your eyes without relying only on the f.lux blue light app

The f.lux blue light app is a good start, but you shouldn’t rely on it alone to protect your eyes. Here are two ways you can effectively protect your eyes from computer screens and harmful blue light emission from other devices without using these apps.

Don’t look at screens at least 2 hours before you go to bed

Stop using your electronic devices at night-time – at the very least, stop using screens just two hours before going to bed.
Now, we understand that this sounds a lot easier than it actually is for many people. Our jobs might keep us awake at night. Our Netflix binge may be the highlight of our day, as we immerse ourselves into a world very distant from our own. Scrolling through TikTok or Instagram Reels may also simply be too hard for us to resist in many circumstances.

Cue the second way to protect your eyes.
 
Invest in high-quality blue light glasses

Investing in a pair of blue light glasses is an excellent solution. This is even the case if you don’t stop or reduce your screen time.
Wearing blue light glasses can help prevent eye strain, improve your sleep and maintain your overall health by completely block out blue light.

Block Blue Light have developed excellent daytime glasses and nighttime blue light glasses to entirely eliminate your exposure to blue light while your using the computer, your phone or other blue light emitting devices.

Our daytime glasses come in clear lens and yellow lens options. The ScreenTime clear lens computer glasses are crafted to allow good light into the eyes, keeping us alert and in good health, while filtering out harmful blue light. ScreenTime reduces blue light by 50% across the spectrum and targets blue light at the 455n range. By contrast, our DayMax yellow lens glasses is the next level up, designed to block 100% of blue light at the lower range (400-455nm).

Our nighttime glasses are designed to work against the ‘rise and shine’ message your brain receives when you’re exposed to blue light at night. Our amber lens ‘Sundown’ glasses option is designed to block 100% of blue light, and are best worn around 2-3 hours before going to bed. While our red lens ‘nightfall’ glasses block not only 100% of blue light, but also 100% of green light up to 550nm.

The technology we use for our glasses is crafted to reduce blue light by 50% across the blue light spectrum. Our clear lens computer glasses in particular are made to target blue light at the 455nm range. This is absolutely integral because that’s the strongest wavelength emitted from our digital devices.

Get in touch with our professional team at Block Blue Light if you have any further questions about the f.lux blue light app, blue light glasses or how blue light can affect you. 


[RunningDeer]

What is Blue Light?

The short answer is that blue light is the type of light emitted by the screens of electronic devices such as cellphones, computers, and televisions. You can actually tell in the dark or if you look at these screens from a certain angle that the light has a blueish tinge. Blue light is also present in sunlight, this is a bit harder to see, sunlight certainly doesn’t look blue.

You see, different types or colours of light have different frequencies and wavelengths. For simplicity, we’ll look at wavelengths. We can see light waves from 400 nanometres which are violet all the way to light waves of 700 nanometres which is red.

Sunlight contains violet, blue, indigo green, yellow, orange, and red light frequencies which results in white light. Fluorescent lights also emit a lot of blue light.

 
What is The Truth About Blue Light Eye Damage?

High energy blue light, found in the 415 to 450-nanometre range can cause retinal degeneration. Studies have found a positive link between lower energy blue light (450 to 500-nanometre range) such as the type emitted by many electronic devices and damage to vision, there is enough evidence to warrant concerns.

Many older people who have been exposed to electronics for two decades or more develop cataracts. This can also be attributed to spending many hours in the sun without wearing a hat or adequate sunglasses. This is due to both UV light and blue light.

A review of studies on age-related macular degeneration (deterioration of vision) and blue light have seen a link, particularly after cataracts surgery. Cataracts protect the eye from light, and without this and the lower melanin content in the eye, blue light speeds up the deterioration of vision.

Our eyes are protected by melanin, the same thing that gives colour to our skin and hair. As we age, we start losing that protection. People in their 60’s only have about half the amount of melanin in their eyes compared to when they were in their 30’s.

It’s not just people over 50 who need to take care of their eyes. Fluorescent lighting and sitting in front of a computer screen for several hours a day is harsh on the eyes. Anyone who works in this kind of environment and has tired eyes that feel strained at the end of each day can attest to that.

Did you know that people under the age of 30 haven’t developed sufficient lens pigmentation to offer protection?
 
How Does Blue Light Damage The Eyes

Our eyes allow us to see by letting light in through the pupils. This light is then focused onto the retina which is a light-sensitive membrane. The retina is most sensitive to blue light. Photo-oxidation can occur due to overexposure which releases free radicals. Just as overexposure to the sun starts to damage our skin via free radicals, so excess blue light starts to damage the retina.

 
How to Protect Your Eyes

Of course, cutting down your exposure would be a very effective way to reduce the chance of blue light eye damage, and certainly, with children, this may be done with more ease.

But blocking or filtering out blue light is a much easier suggestion than asking everyone to cut down on time behind a screen. With many jobs involving computers and offices often being lit with fluorescent lights, we come home to spend time in front of the TV or our phones, and for some, even more time on a computer. At Block Blue Light, we have a range of options that will fit easily into your lifestyle and we cater for kids and adults.

Blue Light Blocking Glasses

Daylight computer glasses are a great way to reduce eye strain and filter out blue light, which is especially important closer to bedtime. Some options fit over spectacles and there are options for children too.

Studies suggest that blue light glasses don’t hamper vision and had anti-glare benefits and may be an effective way to protect the eyes while working on the computer and reduce eye strain. Using blue light blocker glasses with red or orange lenses can be beneficial for relieving eye strain after a day at the office and for helping you to sleep better at night.

Eye-Friendly Lighting

The blue blocking light bulbs and lighting range include bulbs that range from orange to red, a red light blue light blocking torch, an amber book light, and even red light therapy panels. These lights are gentle on your eyes and have the added bonus of helping you to fall asleep faster.

Blue Light Phone Filters

Installing a blue light filtering app on your phone is very helpful. Not all apps can work intuitively or provide effective protection without sacrificing visibility during the day.

If this is the case with your chosen app or you just don’t want to add another app to your phone, check out our blue blocking screen filters for iPhones. These screen filters also serve as screen protectors while blocking the blue light from your phone at all times without compromising on visibility.

Other Tips to Reduce Blue Light Exposure:

• Set your computer screen colours to a warmer setting
• Adjust the angle of your computer to prevent glare
• Take frequent breaks from your computer, preferable every 20 minutes to focus on something further away for 20 seconds or so
• Go for a walk or sit in a room that makes use of natural light during longer breaks

 
Is There Any Benefit to Blue Light?

While we need to protect our eyes from overexposure to blue light, there are a few benefits to it as well, particularly in the morning. As mentioned before, sunlight naturally contains blue light and getting just a few minutes regularly will be enough to reap the benefits without risking skin or eye damage caused by too much sun.

Here’s how it helps us:

• It helps to regulate our sleep-wake cycle: Blue light regulates our circadian rhythm. Letting some morning sunlight in is a good idea or even sitting outside. Just don’t forget to wear sunscreen and sunglasses if you are going to be in the sun for longer than 20 minutes.
• It helps us feel alert: Another bonus of morning light is that it helps us feel energized. This is also why bright light, particularly cold white light, at night will keep you up.
• It supports focus: Blue light helps with cognitive tasks such as focus and memory.
• It boosts our mood: This is especially true of people who struggle with seasonal affective disorder (SAD). Spending some time in the sun is a very effective treatment. Light therapy boxes are an alternative when this isn’t possible.
• It helps to develop children’s eyes: We are referring to sunlight here.
• A lack of sunlight and too much screen-time are both risk factors for developing near-sightedness. 
   

How Much Blue Light is Too Much?

There isn’t any conclusive data on exactly how much exposure is too much. Just a few decades ago, we weren’t spending much time on electronic devices. People were usually only exposed to artificial blue light when watching television. Studies are ongoing and will hopefully give more detailed guidelines in future.

If you experience eye strain, headaches, or feel your eyes going dry, you could definitely benefit from using blue light blocking glasses and taking frequent breaks from the computer. At very least, use eye-friendly lighting in your home.

There is no question that blue light has a big impact on our lives and that too much of it can lead to negative effects on our eyes. Using the right tools can reduce the risk of retinal degeneration and even prevent it.

This is especially important for people under 30 and those who are over 50. This is because our eyes don’t have enough of the natural defense that the pigment, melanin, provides. But we should all be taking preventative measures to protect our eyes, no matter how old we are.

Blue blocking computer glasses are an easy and effective solution. Installing blue light filter applications on your computer and smartphone is also helpful. Using warm-toned lighting in your home will protect your eyes and help you to sleep better.

page source + product links

[RunningDeer]

Frequently Asked Questions:

What is melatonin and why is it important?

Melatonin, also known as the 'sleep hormone', is produced by the brain's pineal gland. Melatonin is responsible for regulating sleep and wakefulness. After the sun sets and it starts to get dark, a signal is sent to our brain to start secreting melatonin which causes sleepiness and encourages us over time to drop into a deep sleep. After the sun sets, exposure to artificial blue light disrupts this evolutionary process of 'priming' you for sleep. This harmful light suppresses the release of melatonin as it signals your brain that it is still daylight, trying to keep you awake and alert.

Melatonin plays a significant role in our overall health, one of its key roles is to counteract stimulating energetic hormones such as cortisol in your system. When melatonin is high, cortisol will be low. This allows us to be in a low stress and relaxed state which promotes our body to obtain restful sleep and boosts cell regeneration. However, if melatonin is low (due to being suppressed from blue light), cortisol will remain high - keeping you energized and stimulated at night; thus, it disturbs your quality of sleep. Constant high cortisol equates to constant high stress, which will wreak havoc on the body! In this way, melatonin is necessary to maintain a regular and healthy body clock and sleep wake cycles.

For more detailed information on melatonin, please see our blog article Melatonin 101–Why This Sleep Hormone Supercharges Health and How You Can Produce More

Can I use the Night-time glasses during the daytime as well?

We do not recommend using the night-time glasses during the day as this will create a circadian mismatch and will actually cause issues with sleep later in the evening. Using night-time glasses during the day with be very harmful and will actually be detrimental to your health. Let me give you a bit more detail as to why:

Our night-time glasses block 100% of blue light, and when your brain receives no blue light signals it assumes its night-time so it will start to prepare you for sleep even if it’s the middle of the day. So having these glasses on during the daytime will leave you feeling tired, unmotivated, sleepy, and your brain will be very confused as to what’s going on!

Over time a lack of blue light during the day will lead to low energy and motivation, and will create a circadian rhythm mismatch, so you want to make sure you’re not blocking it all out during the day!

We need healthy amounts of blue light during the day as its responsible for making us feel awake, motivated and alert. The issue we have is we get far too much blue light during the day as modern lighting, screens, and devices, as they emit very unnatural levels of blue light, so we need to bring it back into balance and that’s were our daytime glasses help.

Our daytime glasses allow the healthy wavelengths of blue light through to allow you to feel awake and alert, and filter down the harmful wavelengths that cause eye damage, headaches, and eye strain.

The key here is to target the exact wavelengths of blue light that lighting and screens emit the most, this is 455nm. Our glasses have been designed to filter the 455nm range of blue light by 50% with our ScreenTime clear lens, and 100% with our DayMax yellow lens, whereas most daytime blue light glasses will only filter blue light up to 430nm, and filter none at all at 455nm making them very ineffective.

So be sure to look for the exact specifications of blue light filtering when getting daytime glasses.

Then at night-time we need to make sure we block ALL blue light, as any amount getting through is enough of a signal to the brain that it’s still daytime, so our sleep hormone melatonin will be suppressed and you will have lower sleep quality, trouble falling asleep, or staying asleep, or all of these issues. So ensuring the glasses you use are blocking 100% of blue light is key for night-time!

When Should I wear the Night-time sleep glasses?

Once the sun has set and you're being exposed to any artificial light source we strongly recommend wearing our night-time blue light glasses. These glasses should stay on from the point of sunset up until going to bed. This allows your brain to recognise that it's night-time and to start to wind down for sleep, this cannot happen in the presence of any blue or green light.

Wearing the night-time glasses as soon as it gets dark will ensure maximum melatonin release which will then ensure you obtain deepest and most restful sleep.

How does blue (and green) light affect sleep?

Melatonin (the sleep hormone) is produced by our brains which makes us fall and stay asleep.

Darkness causes the body to produce melatonin, which causes sleepiness, that signals the body that it is time to sleep.

Exposure to blue and green light at night suppresses the release of melatonin as it signals your brain that it is still daylight, trying to keep you awake and alert.

Reduction in melatonin makes it hard to fall asleep and/or stay asleep, drastically lowers sleep quality, and causes serious sleep disruption.

Quality sleep is essential for maintaining a healthy body and mind.

What are the sources of artificial light?

Most people are completely unaware that the sources of artificial blue light are everywhere; in today's modern world, you simply cannot escape it. All modern devices which have a light source will produce some amount of blue light even if it doesn't appear to look noticeably blue.

In fact, all artificial, electric-powered devices which produce a light source will emit blue light to varying degrees, even if it doesn't look blue. The most common sources of artificial blue light include:

• Tablets such as iPads
• Smartphones
• Monitors from computers and laptops
• LED and plasma TV screens
• Fluorescent lighting in offices and stores
• Conventional LED lighting in houses
• The light inside your fridge

Is blue light bad for my eyes?

If you are working for prolonged periods of time on computer screens or under harsh artificial lighting during daytime hours, you are damaging your eyes from chronic exposure to harmful blue light.

Symptoms can manifest as digital eye strain, dry, itchy or irritated eyes, headaches and migraines, even loss of vision from macular degeneration.

For more info on how blue light can cause eye damage please see Does Blue Light Cause Eye Damage?

[meat suit]

I have the free Twilight app on my android phone since the arrival of Jack Kruse here.
It really helps my eyes a lot. Hardly any eye fatigue now.

[jaybee]

*

since looking at some of the posts on this thread (thanks RunningDeer for keeping the thread going).....

I've bought some Blue Light Blocking glasses off Ebay .... £8.85.... ($11.48)

they say they are 99% blue light blocking (?) - I've been wearing them for the computer and generally in the evening and I think they are helping me to get a more restful sleep... I always wake up at least once or twice in the night but even so the chunks of sleep that I get seem better and deeper...

For the price I'm happy with them... if there were any left I would have had the 'leopard' frame ones but they only had the gloss black ones ... but they're ok...

Had them about 5 days -

these are them... and there are lots of other ones on the site at differing prices...

https://www.ebay.co.uk/itm/167012861...3Avlp_homepage


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I think this subject has relevance for my thread.... 'The Second Coming - Christ Within'......(Spirituality section) ....aka the Sacred Secretion - there was something that Kruse said about the (cerebrospinal fluid) (+) melatonin being in the Pineal Gland but the majority of it is in all the cells of the body - which would make sense... how you can get the kundalini energy buzzing all around the body including the arms and legs... and it doesn't have to always be the more intense + dramatic, up (or down) the spine thing - - -




(thanks to all who have posted on this thread)

edit to add.... and Bill for the OP...

[RunningDeer]

Posted by jaybee (here)
*

since looking at some of the posts on this thread (thanks RunningDeer for keeping the thread going).....

I've bought some Blue Light Blocking glasses off Ebay .... £8.85.... ($11.48)

they say they are 99% blue light blocking (?) - I've been wearing them for the computer and generally in the evening and I think they are helping me to get a more restful sleep... I always wake up at least once or twice in the night but even so the chunks of sleep that I get seem better and deeper...

For the price I'm happy with them... if there were any left I would have had the 'leopard' frame ones but they only had the gloss black ones ... but they're ok...

Had them about 5 days -

these are them... and there are lots of other ones on the site at differing prices...

https://www.ebay.co.uk/itm/167012861...3Avlp_homepage

You're welcome, jaybee. Thanks for your in-put with the positive effects of blue blocking glasses.

There are a lot of things happening to effect our biology and the quality of life, but blocking out the toxic blue light is something we can change in a matter of days. And with a few behavioral changes, we also restore the dopamine imbalances which precipitate all kinds of addictions. (added below)

It's hard to know which blockers are effective and which are bogus. This post confirmed my personal experience with Amazon glasses: Not all Blue Light Blocking Glasses Are Created Equal, Which Blue Light Glasses Are The Best?

I mentioned earlier how I wasted money on a pair of cheapo blue block glasses from Amazon, which included a blue block test kit to prove they block the blue light. It wasn’t until my new glasses arrived that I discovered how true this statement is: “You get what you pay for. I had the new 100% blue blocking glasses on and couldn’t see the time on the digital clock because the numbers were blue.

These are some photos I took this evening to demonstrate the difference:

Compare my DayMax glasses on the left with the Amazon glasses on the right. Alas, it's hard to see, but in real time the DayMax are a different color blue because they eliminates 100% of the harmful blue light, hence a change in blue. Whereas there's no change in color for the Amazon glasses.

DayMax Glasses provide MAXIMUM protection against blue light during the day by eliminating 100% of the harmful blue light emitted from screens, devices, and lighting, while still allowing all the essential beneficial light though responsible for positive mood, energy, and focus.

Amazon glasses - ANDWOOD blue blocker glasses women are use substrate anti-blue light lens: Filter high level blue light from digital screen of computer, phone and TV, maintain HD clear vision with less color distortion. They alleviates visual fatigue and discomfort from long periods of web surfing, gaming and working under fluorescent lights with UV400 protection can effectively block 100% harmful UV rays and glare reduction.

My Night Glasses

NightFall Blue Blocking Glasses feature our signature blue AND green light blocking red lens. These are the most optimal blue light blocking glasses available for optimising sleep and balancing hormones...

Our optical grade red lenses block 100% of blue and green light from 400nm to 550nm. This is the exact range that has been shown in clinical trials to lower melatonin and negatively impact our sleep.

Chart: Lens Comparison Summary at the bottom of the page is a helpful comparison.

As mentioned earlier, another reason why I’m blocking out the negative blue light is because blue light destroys the dopamine reward tracks in brain. Sleep provides natural dopamine. Dopamine deficient means one must artificially create it. AND the bad guys assist through blue light tech this dopamine addictions for the negative rushes. (ex. no attention span, rage, abuse)

Dopamine imbalances:

Addictions can cause physical and psychological problems, as well as interpersonal problems. Signs of addiction include cravings, intolerance, and withdrawal. 

Addictions can be physical or behavioral: 

Physical addictions - These include addictions to substances like alcohol, tobacco, opioids, prescription drugs, cocaine, marijuana, amphetamines, hallucinogens, inhalants, and PCP. 


Behavioral addictions - These include addictions to activities like gambling, eating, exercising, shopping, shoplifting, having sex, viewing pornography, video gaming, work addiction, exercise addiction, and spiritual obsession. 

Online shopping addiction - Also known as compulsive buying disorder, this is a behavioral addiction that involves impulsive and compulsive buying of goods and services online.

[Vangelo]

Great photos to illustrate the difference.

(I also got a chuckle when I saw that we have the same alarm clock)

[RunningDeer]

Posted by Vangelo (here)
Great photos to illustrate the difference.

(I also got a chuckle when I saw that we have the same alarm clock)

Thank you, Vangelo.

That clock is in the living room. If it was in the bedroom it (the blue light) would mess up my circadian rhythms.

Circadian rhythm defined

Circadian rhythms refers to the multiple patterns that occur in living beings over a 24-hour cycle: 

Explanation 


Circadian rhythms are the physical, mental, and behavioral changes that occur in living beings over a 24-hour cycle. They are controlled by a biological clock, which is made up of proteins that respond to the day and night cycle. The term "circadian" comes from the Latin words circa, meaning "about", and diem, meaning "day". 


Examples 


Almost all living things have circadian rhythms, including animals, plants, and microorganisms. In humans, nearly every tissue and organ has its own circadian rhythm. 


Factors that influence circadian rhythms


The biggest influence on circadian rhythms is light and dark, but other factors include food intake, stress, physical activity, social environment, and temperature. 


Impact on sleep


Misaligned circadian rhythms can make it harder to fall asleep, lead to more wake-ups during the night, and result in less sleep overall. 


[ClearWater]

Great info in here. Been using f.lux for many, many years. Good to know that it's not blocking blue light 100%. I'll likely get some of the blue blocking glasses at some point.

Not sure if it's been linked in this thread yet or not, but there are a lot of great writings from Jack on his website. This link displays articles by category, which seems to be the best way to find what you're looking for. https://jackkruse.com/?s=

[RunningDeer]

Posted by ClearWater (here)
Great info in here. Been using f.lux for many, many years. Good to know that it's not blocking blue light 100%. I'll likely get some of the blue blocking glasses at some point.

Not sure if it's been linked in this thread yet or not, but there are a lot of great writings from Jack on his website. This link displays articles by category, which seems to be the best way to find what you're looking for. https://jackkruse.com/?s=

Thank you, ClearWater. And thanks for the link again. Repetition's a good thing. There's a lot information to dig through and retain.

Investing in the block blue light tech is one more way to Reverse in the Inverse.

Here’s a few more contacts:

• This is the link to the 85-90 categories on his main site JackKruse.com titled “Reversing Disease for Optimal Health” or his blog.
  
• X/Twitter - Pleb Kruse = BTC foundationalist in exile
  
• Dr Jack Kruse Patreon