Add Yahoo as a preferred source to see more of our stories on Google. “Light, particularly the blue wavelength of light, is one of the strongest regulators of your circadian rhythm,” says Stephanie M.

Unless you’ve been living under a rock—in which case your sleep cycle is probably already pretty solid—chances are you’ve heard something about blue light. For the uninitiated, blue light, which ...

LA Times Studios may earn commission from purchases made through our links. This guide explores how blue light glasses can help with eye strain and sleep issues caused by digital screens. Wake up.

Blue light-blocking glasses claim to reduce eye strain from screens, preserve eye health, and help with sleep. But do they actually work? Experts weigh in. In recent years, blue light-blocking glasses ...