Blue light from your PC's screen may disrupt your circadian rhythm. Here's how to use a blue light filter with built-in night modes on your PC or Mac .

The experts we spoke with agree that wearing blue-light blocking glasses after dark, for computer work or scrolling through your phone, may help you to doze off afterward and sleep better.

Blue light -- the kind from your smartphone, tablet, TV, and even energy-efficient light bulbs -- can lead to a range of health issues. Here are a few tips to ward off blue light’s effects.

Fortunately, not only can you enable a blue-light filter on your smartphone, you can do so in Windows 10 and 11, too. In fact, the process is incredibly easy—setup takes just a few minutes.