The Effects of Light Pollution on Sleep

The importance of light in regulating sleep is quite complex. We have some biological clocks in our brain, the kick to give us a day and night cycle but they're not exactly 24 hours. So these are mainly affected by what we call blue light. The blue light has the effect of day of the sun, so has intensity and spectrum very similar to the sun. Whereas a red light, which is of less energetic love at a long wavelength, is more conducive to dozing off. I'm afraid we have many of the lit environments at night, which are very bright blue light, and that would obviously disrupt sleep in the people exposed to it on a regular basis.