im aware too much light is bad. didnt they disprove the blue light thing?
Comment on Anon seeks advice for real world problems
GrymEdm@lemmy.world 7 months agoFor some that’s definitely true. It’s well known that light (especially blue) can disrupt someone’s circadian rhythm.
umbrella@lemmy.ml 7 months ago
GrymEdm@lemmy.world 7 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.
umbrella@lemmy.ml 7 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.
GrymEdm@lemmy.world 7 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.
Lyre@lemmy.ca 7 months ago
Wow you had that source fast… Nicely done