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.

Blue light from screens has been blamed for sleep problems, screen fatigue, and various health issues. Companies sell blue light blocking glasses, apps filter blue wavelengths, and phone operating ...

Poor sleep hygiene, which can include anything from stress, late-night scrolling, or even the wrong temperature in your room, may affect how you sleep. As you probably already know, a bad night's ...