For anyone who cares about their so-called "sleep hygiene" — essentially good, deep, restful sleep — it has become conventional wisdom that blue light will wreck it. Blue light is often the wavelength ...

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 ...

You’ve likely heard that blue light from smartphone screens may be keeping you awake at night. While the sun is our main source of blue light, the rise of LEDs and screen use exposes us to artificial ...

I hate to ask because I feel like I might be getting sucked into believing something that isn't true, but I've been getting quite a bit of eye strain lately after a long day at the computer, and after ...

A bright blue beam has been lighting up the metro Phoenix night sky, and a lot of Valley residents want to know why. In recent weeks, a glowing blue column rising roughly 3 miles into the air near ...