A new study suggests that blue light such as from phone screens may not be as disruptive to sleep as previously thought. The study looked at how people reacted to different types of light. They found ...

Blue light is a high-energy part of visible light from the sun, screens, and light-emitting diode (LED) bulbs. Your cornea and lens don’t block blue light the way they block ultraviolet (UV) rays.

If you remember your prism experiment from grade-school science, light is made up of several visible colors. One of these colors is blue light. It has the shortest wavelength and produces the highest ...

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 ...

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 ...