The written article is based on a summary of existing literature on the topic of infrared saunas. The article is for educational purposes and the information provided below cannot be taken as a promise to help with acute health problems or diseases. 22 references back the claims in the article. All references are numbered. You can access the text of the reference by clicking on the number.
In this blog post, I’ll talk about orange light LED therapy. As it turns out, orange light has some unique properties that are different from blue light, green light, and red light. This blog post is part of a series on chromotherapy, that explores all visible colours of light:
This blog post is obviously concerns orange light. So, let’s first explore what orange light LED therapy is:
Orange LED Light Therapy: Different Than Blue Light, Green Light, And Red Light
To understand orange LED light therapy, you must consider the “light spectrum” in physics. You see, every different type of light has its own wavelength (1; 2; 3; 4). There’s ultraviolet light with its own wavelength, visible light, and infrared light.
Infrared light equals heating and is used in our saunas. Ultraviolet light creates vitamin D in your skin and can give you a sunburn if you’re overexposed. And visible light is the only type of light you can see with your naked eyes and is made up of all colours of the rainbow.
These colours include violet, blue, cyan, green, yellow, orange, red and everything in between. Red light, for instance, has a wavelength from 620 nanometres (nm) to 750nm. Orange light - the topic of this blog post - has a wavelength from 600 to 620nm.
Each wavelength also has unique biological effects on the human body. Green light, for instance, can help with fat loss, has skin health benefits, and help you lose fat. Red light has dozens of different benefits. And today, I’ll talk about the orange light LED therapy effects you can expect:
Orange Light LED Therapy Effects
So let’s now look at orange light LED therapy effects. As the name already implies, LED therapy uses “Light Emitting Diodes”. These LEDs have become very economical since the 1990s and have subsequently been used in light therapy because they can be engineered to emit one particular type of light instead of old-fashioned light bulbs.
Here are the orange light LED therapy effects. Please keep in mind that this is only a small quantity of the health effects of orange light because so many studies have been published:
1. May Improve Cognitive Function
In elderly with cognitive impairment, orange LED light has been shown to improve blood flow and, thereby, cognitive function (5). Domains of cognitive function, such as memory, executive function (e.g. planning and impulse control), and overall cognitive function, improved when orange light was applied to the brain. 610nm light was used.
In animals, 610nm orange light may also improve recovery after a stroke (6; 7; 8). Of course, these effects need to be confirmed in humans.
2. Improves Skin Health By Countering Acne
In human studies, orange light emissions, together with blue light, caused improvements in acne (9; 10; 11). In many of these studies, there are very significant improvements, leading to huge upgrades in the quality of life of the participants with acne.
3. May Boost The Immune System
When cells were irradiated with 610nm light in the lab, the activity of some “lymphocytes” improved (12). Lymphocytes are related to the lymphatic system and are one of the primary cells of the immune system.
4. Probably Counters Pain
In animal studies, orange light at 610nm counters joint pain (13). Inflammation in relation to Rheumatoid arthritis also went down. Confirmation of these effects in human studies is needed, though.
In studies with females who have dysmenorrhea, applying 610nm light lowers pain as well (14; 15). and in one more study, orange light at 620nm counters pain after dental implant surgery (17). These results are promising and show a pattern of anti-pain effects of orange light.
5. May Improve Motivation
In an an animal study, orange light exposure in the eyes at 620nm improves “dopamine” levels (16). Dopamine is a brain signalling compound that improves motivation, the ability for abstract thought such as planning, and well-being. Blue light and ultraviolet light had similar effects in this study.
6. May Promote Bone Formation
In laboratory studies (in vitro), 620nm orange light can promote bone formation (18; 19). Remember that these results still need to be confirmed in animal and human studies.
So far, so good.
Overall Effects Of Orange Light Assessed
Overall, the effects of orange light therapy are very promising. Currently, about 70 different studies are published on the 610nm and 620nm wavelengths that make up orange light. I’ve picked the most exciting studies from those 70 studies.
In many cases though, except for countering pain, there’s a lot more research needed on these effects.
Next up, let’s consider a crucial topic where orange light may be beneficial too:
Should I Sleep With Orange LED Lights?
So here’s the deal: green light and blue light are traditionally bad for sleep quality if you’re exposed to them at nighttime (20; 21; 22). The concern here are all blue wavelengths from 400 - 500 nanometres (including technically purple between 400 and 430nm), and green light from 500 to 550nm.
When that blue or green light enters your eyes at nighttime, they suppress melatonin levels. Lower melatonin levels, in turn, make it harder to fall asleep, ensures that you wake up more frequently, and result in less deep sleep. So ideally, you’ll want to keep your melatonin levels high.
And, sleeping with orange LED lights is an ideal way to accomplish that because that light doesn’t inhibit melatonin production. Also, avoid the blue and green colours if you’re in an infrared sauna and using chromotherapy at night.
Our chromotherapy emits red light at 660nm, blue light at 405nm, and green at 540nm. You can combine these colours into yellow, purple, and orange by activating two out of the three. Lastly, let’s conclude:
Orange Light As The New Bright Light Therapy
With a few dozens of studies on orange light for light therapy, the results are really promising. I hope many more studies will get published on the 610nm and 620nm wavelengths so that more insight is gained into the health effects of orange light. For what it’s worth, though, right now, orange light seems to have significant effects on pain, and there’s limited evidence orange light improves cognitive function, skin health, immune function, and a few other health domains.
Also, below I’ll answer some frequently asked questions on this topic:
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Orange Light Therapy Frequently Asked Questions
Finally, let me answer a few frequently asked questions about orange light therapy:
Should I Sleep With Orange Led Lights
You can easily sleep with orange LED lights on, as these lights don’t suppress melatonin. So, it’s not a problem when the light from the orange LED lights hits your skin or even your eyes. The light will not negatively impact your sleep, so your melatonin levels will stay high for much higher sleep quality.
What Is Orange Light Therapy
Orange light therapy uses the 600 - 620nm wavelengths. Sometimes, that part of the light spectrum is considered “red”, but technically it’s considered orange. The exact mechanisms of orange light therapy are currently unknown. What is known is that orange light therapy has benefits such as countering pain and improving blood flow. More research into this therapy is needed, though, as there are few high-quality human studies.
Is Orange Light Good For Bedroom
Yes, orange light is excellent for the bedroom. Again, the orange light doesn’t suppress melatonin levels, and you’ll end up with higher sleep quality. Melatonin is necessary for falling asleep quickly, staying asleep, and getting lots of REM (dream phase) and deep sleep.
What Are The Negative Effects Of Orange Light
Right now, no negative effects of orange light have been found. But, undoubtedly, once a lot more research emerges on this topic, some side effects will be found. Blue light, for instance, can keep you from sleeping and create eye damage. Orange light can make you tired if you overdo it and is unsafe when paired with cancer.
In case of cancer, some experts believe that orange, red, and near infrared light can potentially spread them throughout the body (23; 24). Opinions are starting to slowly shift on this topic, though, but to ensure safety, consult your doctor before using orange light on a tumour.
Does Orange Light Actually Work
Yes, about 70 studies show that orange light works for many different goals. More higher-quality studies are needed, though, especially with human participants.
So far, studies with orange light specifically, so between 600 and 620nm, have shown that it may improve cognitive function, aid bone formation, increase your motivation, and boost the immune system. Stronger evidence suggests that orange light has benefits for skin health and countering pain.
What Emotion Does Orange Give
If you look online, people will describe orange as energetic, happy, related to autumn, attention-grabbing, exuberant, joyful, courageous and youthful. But, the downsides described are that it is overbearing, excessively extraverted, superficial, exhibitionistic, and so forth.
You may, however, have your own emotion for orange or ascribe your meaning with the colour orange. The truth here is in the eye of the beholder.
Why Is Orange Light Better Than Blue Light
At nighttime, orange is better than blue light because it doesn’t inhibit melatonin levels in your brain. At daytime, however, orange and blue light are beneficial - one or the other isn’t better.
Does Orange Light Increase Melatonin
Technically speaking, orange light does not increase melatonin. Instead, orange light prevents melatonin levels from being inhibited by blue and green light. So it’s more correct to say that blue and green light inhibit melatonin, not that orange light increases melatonin levels.
Is Orange A Good Night Light
Orange light is a good night light, yes, as is red. Both colours are perfect for the bedroom or bathroom. Avoid blue or green night at night for good sleep.