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.

Using blue light filters on your devices, reducing overall screen brightness in the evening, and taking breaks all help. If you decide to try blocking glasses designed for nighttime use, look for ...

In today's ever more connected world, it's fair to say that some of us receive nearly as much screen time as we do actual sunlight - if not more, depending on your job and the time of year. A growing ...