I use Blue light filter utilities like Flux on my laptop and Twilight on mobile.
Especially recommended for developers who spent lots of time in front of bright displays. It took some time for me to get used to these, but now I can't work at night if these filters are not on.
Apologies if I diverted from the intent of the post.
Nice, if you need to work at night maybe is a good addition to the toolbox.
I tried this technique on the tablet, when reading, and it felt wrong, I couldn't watch it for more then a few minutes.
Is true that the white light may interfere with your sleep, it will trick the brain that is daylight. To fix this I just stay away from the display at night :D.
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