Some research shows yellow light is more harmful than blue to a good night's rest. Here's what experts say. ... Certainly it stands to reason that before one goes to sleep, ...

This 2023 research notes that red light does affect sleep quality and alertness as a person is preparing for and trying to fall asleep. That research specifically involved people who experience ...

Dr. Alexander Solomon, a neuro-ophthalmologist at Providence Saint John’s Health Center, noted that the study’s light exposures were tightly calibrated and may not reflect real-world conditions. In ...

Light exposure before sleep can make it difficult for you to fall asleep. Tap to read the benefits of sleeping in a dark room. It can disturb your sleep-wake cycle.

Blue light -- the kind from your smartphone, tablet, TV, and even energy-efficient light bulbs -- can lead to a range of health issues. Here are a few tips to ward off blue light’s effects.

How Blue Light Hurts Sleep. Your eyes aren’t good at blocking blue light. So almost all of it passes straight through to the back of your retina, which helps your brain translate light into images.