blue light

"Just as blue sunlight scatters in the Earth's atmosphere and makes the sun look slightly less blue, light from a strong blue, rich white street light enters your eyeball, scatters around in your eyeball and causes a sort of gauzy veil of glare," Lowenthal explained.

The short wavelength blue light of LEDs bounces around more in the sky, intensifying the brightness of light pollution more than an equivalent amount of less blue light energy.

Fungi can have white collar proteins and cryptochromes for detection of blue light, opsins that detect green light, and phytochromes for red light.

I get the humidifier all set with essential oils, turn the lights down and try to have the last hour with no blue light, sugar, food, and keep it really quiet and soft.

But industrialization has changed that, of course, by introducing light pollution that gradually erased the stars from view before the bright blue light of countless LEDs made the situation so much worse.