Both humans and animals are at increased risk of adverse health impacts due to loss of sleep from blue light emitted from the growing number of LED street lamps, research on light pollution in European countries has found. Britain-based scientists used photos taken from the International Space Station (ISS) to show that white LEDs have increased the proportion of emissions in the blue part of the light spectrum. Since blue light inhibits the release of the hormone melatonin, which promotes sleep, the widespread switch to LEDs is believed to be undermining the sleep of both animals and humans, …