Comment on Anon seeks advice for real world problems
umbrella@lemmy.ml 2 months agoi 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 2 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.
umbrella@lemmy.ml 2 months ago
thats exactly the one i read. thanks for sharing your research.
GrymEdm@lemmy.world 2 months ago
Thanks for sharing yours too! Science is always about getting it more and more right.