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.

We’re staring at our devices more than ever, and besides eating up our time, they’re giving off tons of light. Blue light has gotten an especially bad rap, but that’s not quite fair: It’s just one ...

Q: What causes the blue screen errors that freezes everything on my Windows computer? A: The blue screen of death — often shortened to BSOD — is Windows’ way of saying something went wrong at a system ...