How smartphone light affects your brain and body


There’s something incredibly powerful about the blue lights that the designers of our smartphone, tablet, and laptop screens have been able to create. The lights in these screens glow so bright that we can see them even during a sunny day. At night, they’re bright enough that they’ve been compared to a “little window” that daylight can peer through.

That’s why – hard as it might be to stop – looking at your phone at night is a terrible idea.

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