Fluorescent and LED (light-emitting diode) ... In one study, as little as 2 hours of exposure to blue light at night slowed or stopped release of the sleep hormone melatonin.

Blue light has acquired a dubious reputation in recent years, frequently blamed for everything from disrupted sleep patterns to digital eye strain. This high-energy light, emitted abundantly by ...

The amount of blue light coming from your digital devices and home's LED television and lighting is significantly less. Because of the many ways we're exposed to blue light, research on its ...

That includes artificial light of all kinds, though light from electronic devices that emit that blue light—such as the LED displays in smartphones, ... Set up apps that block blue light at night.

Furthermore, this LED light is much bluer than sodium light and previous research shows that nighttime exposure to blue light can have negative effects on people’s circadian rhythm and sleep. There is ...

Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further ...

Blue light might only delay your sleep by 2.7 minutes. ... Other sources of blue light include LED screens and smartphones. ... When late night conversations are keeping you up, ...

Blue light from your PC's screen may disrupt your circadian rhythm. Here's how to use a blue light filter with built-in night modes on your PC or Mac .