Comment on Anon seeks advice for real world problems

• GrymEdm@lemmy.world ⁨5⁩ ⁨months⁩ ago

  Did they? I’ll have to look. I know reputable sources were talking about blue light specifically as of a few years ago, but science always changes so it’s possible. I’d love a link if you’ve got it, but don’t feel obligated.

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  • umbrella@lemmy.ml ⁨5⁩ ⁨months⁩ ago

    i remember reading a study a couple of years ago but i wouldnt be able to find it again. in any case i still use blue light filters for the reduced eye strain and light amount at night.

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    • GrymEdm@lemmy.world ⁨5⁩ ⁨months⁩ ago

      Thank you for replying, because it reminded me to look for actual studies today :) I found this 2023 study that (via a lot of technical detail) basically says it doesn’t matter if the light is blue or yellow. The authors say theirs was a smaller study limited by budget constraints, but it supports what you said. If you scroll down to the last paragraph they say exposure to short-wavelength light (blue-to-yellow) should be reduced in the evening, and recommend phones, computers etc. have various kinds of night modes and that they be used.

      So the summary seems to be - there’s a study that says blue light IS hard on sleep, but it’s not just blue light it’s all light with more energy than red/orange light (i.e. the light you’d get naturally at sunset). It’s just one study and a small one, but that may be what you read and it’s a good starting point for further research.

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      • umbrella@lemmy.ml ⁨5⁩ ⁨months⁩ ago

        thats exactly the one i read. thanks for sharing your research.

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