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.

Among the fads to emerge from the pandemic − sourdough bread making, TikTok dancing, sweatpants tie-dying − wearing blue light glasses to cope with increased screen exposure remains popular. As our ...

As a whole, we spend a lot of time in front of screens. In fact, 43 percent of adults have jobs that require the usage of a tablet or computer, and kids in the US between the ages of 8 and 12 spend ...

Share on Pinterest Researchers say that blue light may not significantly affect a person’s circadian rhythms. AleksandarNakic/Getty Images Blue light from the sun is vital in regulating a person’s ...

Even if you know that looking at a phone, tablet, or computer screen at night is bad for your sleep, it’s hard to stop. That’s one reason there’s been a growing interest in glasses or apps that can ...

You can get a brighter smile with a number of different whitening products and techniques available at home or at a dentist’s office. They vary in effectiveness (and price), but none of them provide ...

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 ...

It may not be great on the eyes, but it could be a new way to take care of those pit stains. By Andrew Paul Published Sep 3, 2025 10:00 AM EDT Get the Popular Science daily newsletter💡 Breakthroughs, ...

Blue light therapy may help with depression, but it is still not clear exactly how effective it is. Depression is a mood disorder associated with a loss of interest in activities, low mood, and ...

Alina Bradford has been writing how-tos, tech articles and more for almost two decades. She currently writes for CNET's Smart Home Section, MTVNews' tech section and for Live Science's reference ...

Police cars have various lights they use to communicate with others on the road, but at times it can be hard to tell what exactly they're conveying. Red and blue flashing lights are standard and we ...