Blue light comes from everywhere around us. It’s not only the monitors, or the smartphones, or the tablets around us.
Almost all artificial light sources today generate much more than the recommended amount of blue light.
In 1988 the photoreceptor Melanopsin was found and for the first time it was proven that light is not only useful for our vision but it’s critical for many biological processes
The main role of Melanopsin is to control our biological clock and circadian rhythms.
It does this by detecting when blue light is present in our environment.
Melanopsin activates when blue light enters our eye and it sends a signal to our brain that it’s day and our brains stops the secretion of our sleep hormone melatonin.
Melatonin from his side controls a large number of processes in our bodies and is responsible for our good night sleep.
When we have melatonin in our bodies we feel sleepy and this is the reason why you can’t fall asleep when you sit in front of the computer at night.
If you want to have a normal sleep cycle and feel less eye strain you can try Iris