Transition to blue light radiation across Europe increases suppression of sleep hormone melatonin, say scientists
Blue light from artificial sources is on the rise, which may have negative consequences for human health and the wider environment, according to a study.
Academics at the University of Exeter have identified a shift in the kind of lighting technologies European countries are using at night to brighten streets and buildings. Using images produced by the International Space Station (ISS), they have found that the orange-coloured emissions from older sodium lights are rapidly being replaced by white-coloured emissions produced by LEDs.
