This is why it's hard to fall asleep after looking at a screen
It's widely acknowledged that blue light has a negative effect on your sleep cycle. This is because it lowers the production of melatonin, a natural hormone used by your body to regulate your sleep. This hormone is normally produced when it gets dark outside so that we are able to fall asleep more easily when it's time to go to bed.
Blue light actually fools your brain into thinking it's still light out! This is how your smartphone, tablet, computer or TV influences the quality of your sleep. Read on to find out what you can do about it.