Our smartphones, computer screens, televisions, the fluorescent lights in the office, and the sun all emit blue light. And experts want you to know that yes, exposure to blue light does affect sleep.

ABC News' Dr. Darien Sutton explains how blue light impacts your performance and overall well-being. Did Aaron Rodgers just finish his NFL career with pick 6? He explained how he'll make retirement ...

Seasonal affective disorder (SAD) is more than the “winter blues.” It’s a real mood disorder linked to reduced light exposure ...

You probably do your best to protect your skin from ultraviolet rays by slathering on sunscreen before going outside (and if you haven’t been, now’s a good time to start). But many people aren’t aware ...

Exposure to blue light doesn't have adverse effects on your eye health. It can, however, disrupt your circadian rhythm. Using blue light filters may help reduce the effects of blue light exposure ...