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What Is Blue Light

 Blue light is a color in the visible light spectrum, with a wavelength between approximately 380-500 nanometers (nm). A more thorough understanding of what blue light is can be complex for a few different reasons, mainly that not all blue light is created equally—presenting health implications that are both enabling and disabling. Another aspect of blue light is that some blue light doesn’t appear to be blue. This distinction within one color is indeed confusing and can make blue light less obvious—and you less aware of the effect it’s having on you at any given time. Some clarity and a better understanding, however, can be achieved. And because almost every waking moment of every day has some relationship to blue...

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