Add Yahoo as a preferred source to see more of our stories on Google. Many Americans spend more than seven hours in front of screens daily, which can affect your skin. (Getty Images) (d3sign via Getty ...

Frames so good you'll wish they were prescription.

An astronaut aboard the International Space Station (ISS) has snapped a phenomenal image of two blue blobs of light hovering in Earth's atmosphere. The International Space Station (ISS) orbits Earth ...

Blue light is one of those things nobody had heard of until a few years ago. Now it seems that everyone is walking around with blue-tinted glasses that supposedly prevent eyestrain, improve sleep and ...

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 ...

Despite their popularity, blue light-blocking glasses probably don’t do much to reduce eyestrain, help keep people alert or improve sleep, according to a meta-analysis looking at 17 studies published ...