Blue light usually comes from the sun but also from digital screens and LED lights. Some experts believe artificial sources may be causing eye damage in humans, but animal studies are inconclusive.

Your tablet, smartphone, laptop, and flat screen TV all have one thing in common: They each give off blue light. You may know them by the acronym ROY G BIV. Together, they make the white light you see ...

Blue light is all around you. These high-energy light waves emanate from the sun, stream through earth’s atmosphere, and interact with light sensors in your skin and eyes. Increasingly, people are ...

What is blue light? “All the light we see is made up of different wavelengths of light,” says Vivienne Sinh Hau, MD, an ophthalmologist at Kaiser Permanente in Riverside, California. “Certain ...

Blue light filter study reveals mixed results: Do glasses and screen protectors truly combat eye strain tech? Experts weigh in on the evidence. Pixabay, Innovalabs Concerns about blue light from ...

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Current relationship status: in a domestic partnership with my iPad, laptop, and iPhone. After shifting all areas of my life to digital (virtual happy hours, endless IGTV workouts), my screen time has ...

Blue light is a shorter-wavelength colored light found in everything from traditional light bulbs to computer and smartphone screens. Blue light is good for your body during the day, but at night blue ...

It’s become a virtually unchallenged piece of conventional wisdom that exposure to blue light—the type emitted by electronic device screens—is bad for sleep. That thinking has spurred a mini-industry ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? At the simplest level, different colors of light have different wavelengths.