Many people use their electronic devices, including phones, tablets, and computers, for extended periods. Companies now sell screen protectors that reportedly block blue light and benefit eye health.

NORTH FORK, CA - Light from man-made sources does not match sunlight. This artificial light gives your body incorrect information from your environment, ...

Even if you know that looking at a phone, tablet, or computer screen at night is bad for your sleep, it’s hard to stop. That’s one reason there’s been a growing interest in glasses or apps that can ...