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 ...

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.

It is produced by, among other things, our energy-efficient indoor lighting, and is emitted by all the electronic devices we are using to consume information. Whether it is the tablet you use to read ...