When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...

Researchers have designed and tested ‘human-centric’ LEDs that emit different wavelengths of blue light depending on whether it’s daytime or nighttime, reducing the disruptive effect artificial light ...

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's ...

Light-emitting diodes (LEDs) can cause headaches or trigger migraine in some people. However, some research suggests green LEDs may help with migraine symptoms and headaches. Exposure to LEDs occurs ...

Several pieces of evidence have suggested that blue light can inactivate various pathogenic bacteria. Previously in vitro and in vivo studies using blue light in the spectral range of 400–470 nm ...