Impact on humans
The light pollution also has consequences for humans. The alternation of day and night is the natural timer. Many psychological processes, such as for the regeneration of cells and the entire sleep-wake cycle are controlled by light. All cells have their own rhythm but they must know whether it is day or night. This signal remains silent if it is too bright at night. Health problems can be the consequences.
Avoiding light pollution?
Light pollution, an undesirable consequence of artificial light usage at night results partly from misguided light, strong illumination, or through wrong positioning of lamps. Each and everyone of us can help reduce the artificial illumination during the night. Be it through the correct positioning of lamps, through the use of motion sensors and by using light bulbs with little or no blue component. It is important that the light is deflected towards the ground, the bulbs are fully shielded, and that we don’t waste light in everyday life.