Many people use their electronic devices, including phones, tablets, and computers, for extended periods. Companies now sell screen protectors that reportedly block blue light and benefit eye health.

When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with your body's internal systems. Yet here's something lighting manufacturers ...

The blue screen that stressed computer users for more than three decades is giving way to a black one. By Sopan Deb For millennials, blue can be a significant color. It is associated with clues left ...