Tag: blue light

Posted in Science

Blue light at night suppresses melatonin and increases alertness

https://www.photonics.com/a62942/Columbia_Researchers_Focus_on_Blue_Lights Smartphones, tablets and other light-emitting devices are lit by LEDs, which have a peak wavelength in the blue portion of the spectrum. Blue light…

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Posted in Science

Blue light at night suppresses melatonin and increases alertness

https://www.photonics.com/a62942/Columbia_Researchers_Focus_on_Blue_Lights Smartphones, tablets and other light-emitting devices are lit by LEDs, which have a peak wavelength in the blue portion of the spectrum. Blue light…

Continue Reading
Posted in Science

Blue light at night suppresses melatonin and increases alertness

https://www.photonics.com/a62942/Columbia_Researchers_Focus_on_Blue_Lights Smartphones, tablets and other light-emitting devices are lit by LEDs, which have a peak wavelength in the blue portion of the spectrum. Blue light…

Continue Reading
Posted in Uncategorized

How Smartphones Hurt Sleep

Smartphones and tablets disrupt sleep, in part, because they emit what’s known as “blue” light. This light is picked up by special cells behind our…

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