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How Blue Light Hurts Sleep. Your eyes aren’t good at blocking blue light. So almost all of it passes straight through to the back of your retina, which helps your brain translate light into images.
However, recent research from analysis site The Conversation indicates that your pre-bed smartphone habit might not be the ...
Is blue light actually harmful to your sleep? Why the science isn't so clear on this popular belief Some research shows yellow light is more harmful than blue to a good night's rest.
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