Question

Claim: Exposure to green light may reduce pain and headaches

Answer 1

There's a good amount of studies to prove that this is true for headaches. For example, in 2016, Harvard Medical School researchers at Beth Israel Deaconess Medical Center conducted one and found that "exposing migraine sufferers to a narrow band of green light significantly reduces photophobia and can reduce headache severity."

All light hurts your eyes but after testing the magnitude of the electrical signals generated by the retina and cortex in response to the colors, green lights generated the largest signals. Blue and red generated the largest signals.

"At high intensity of light—as in a well-lit office—nearly 80 percent of patients reported intensification of headache with exposure to all colors but green. Unexpectedly, the researchers found that green light even reduced pain by about 20 percent."

Source: https://hms.harvard.edu/news/green-light-migraine-relief

Comments

I agree with this factcheck, I think the source you used is a really strong one. It is very helpful that it links many other sources so that we can really gain a strong, well-rounded perspective on this matter. I wonder how this knowledge could help the eyeglass market, maybe instead of blue-light glasses we could have green-light glasses.

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I agree, I think you used a solid source and that many other studies similar to this one affirm the study. The one area where I think your fact check could improve would be if you used multiple sources to triangulate and really affirm the claim!

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I do agree with this factcheck, your source is reliable and you read through the article you quoted. However when you search why green light helps with headaches, your source is the first one that pops up so while your information is solid, it does seem like your claim is lacking in research. I think it would help to add a couple more sources to really drive home the point and backup both your claim and use of sources.
These are a couple that could be used:
https://pubmed.ncbi.nlm.nih.gov/32903062/
https://healthsciences.arizona.edu/news/stories/shining-green-light-new-preventive-therapy-migraine

Answer 2

This claim seems to be true and has been researched thoroughly, The National Library of Medicine published a research study in 2020 and found that "Green light emitting diodes significantly reduced the number of headache days in people with episodic migraine or chronic migraine." 

This seems to be a true claim that the trustworthy sources have researched and published about to prove its truthfulness. 

"As no adverse events were reported, green light emitting diodes may provide a treatment option for those patients who prefer non-pharmacological therapies or may be considered in complementing other treatment strategies."

https://pubmed.ncbi.nlm.nih.gov/32903062/ 

Comments

I agree with this fact check and like your use of the NIH article it does a great job of talking about the possible benefits of green light therapy, but it is in a context relating to the treatment of migraines. The original article talks about treating a woman who had an accident as a teen and began to suffer from headaches and then tried light therapy to replace prescription medicine. So I wonder if the overlap would still be considered beneficial for her case.

Answer 3

Responding to the claim, "Exposure to green light may reduce pain and headaches" I believe I can validate this article's claim because according to a study done by the University of Arizona Health Sciences, their data also suggests that exposure to green light can alleviate headache pain and frequency, due to the way green light interacts with the brain's pain pathways, "A majority of study participants – 86% of episodic migraine patients and 63% of chronic migraine patients – reported a more than 50% reduction in headache days per month."  The green light provides a soothing effect without the side effects associated with traditional medications, supporting the original articles' statement about being a "relatively side-effect-free alternative."

Source: https://healthsciences.arizona.edu/news/releases/green-light-therapy-shown-reduce-migraine-frequency-intensity-0