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Alaska Sleep Education Center

Blue Light Has a Dark Side

Posted by Stefanie Leiter on Nov 14, 2019 5:30:00 AM

We think of all the rituals at bedtime from yoga, essential oils, and sound machines when sometimes the one issue stems from American’s largest addiction: digital devices.

With 71 percent of Americans sleeping with their phone in bed or on the nightstand, the blue light from the screens can emit unneeded light that prevents our brains from shutting down. But we should also not be confused with eliminating blue light altogether. Light therapy treats seasonal affective disorder (SAD) uses blue light.

Ever wonder what makes the sky blue? It is blue light from the atmosphere and comes in a natural, non harmful way. According to Blue Light Exposed, “when outside, light from the sun travels through the atmosphere. The shorter, high energy blue wavelengths collide with the air molecules causing blue light to scatter everywhere.”

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Topics: technology, bedtime, get better sleep, blue light screen

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