Blue light usually comes from the sun but also from digital screens and LED lights. Some experts believe artificial sources may be causing eye damage in humans, but animal studies are inconclusive.

Blue lights on skin make it harder to see surface veins. As the “War on Drugs” declared by former President Nixon in the 1970s staggers on, science and governments look for novel ways to combat drug ...

Manufacturers claim that blue light glasses can filter out blue light and help reduce symptoms such as headaches, eyestrain, and poor sleep. However, research does not support these claims. People ...