this post was submitted on 06 Apr 2025
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Most importantly, if you're not using a "night mode" display filter to force the tint to the red side of things w the screen, your phone (and all monitors and tv's) projects light in the blue end of the spectrum, which mirrors sunlight, which tells your brain it is not time to sleep.
There is real science behind that. However, tech companies just created an adjacent flavor filter of dubious actual value to increase user engagement and avoid potential lawsuits.
People have read books in bed for centuries without issue via all sorts of light sources.
It's all down to good lifestyle behavior.
Well to be fair, the lights used to be candles and then incandescent bulbs, now it's led that also emits blue light
That doesn't change the fact tech companies just marketed it as an excuse to make one feel it is now "safe" to use their phone in bed in a flim-flam interpretation of science. You ever look at those blue filters on phones? Blue is still very present.
Books still exist, other non-blue reading mediums, as do non-blue lights. Thus the "real science behind that" part.