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Did you stay up on your Phone last night? It could be ruining your Sleep and Vision

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Our various personal electronic devices emit blue light because it’s so bright. That’s the only way we can see those screens when the sun is shining. But we’ve started to have regular close-up nighttime exposure to this light only in the past 10 or 20 years, as a recent Gigaom story on the topic notes.

From our very good friends over at thejournal. ie

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