What you might not be aware of, is the emitting of bright blue light that your smartphone does in order for you to be able to read in daylight everything that is on the screen. But, this light cannot be adjust or turned off any hour you want; it emits all the time as well as your laptop, television and other devices around you. The issue may be that this light, which imitates the brilliance of the sun, confuses your brain under considering it is daytime, although it is quite dark in the night. As a result your brain no longer produces melatonin, a hormone which influences sleeping, and can prevent you from falling asleep. The experts advise to shut down every screen near you two hours preceding lying down you bed.
The pineal gland is a very small organ inside your brain which releases the melatonin a couple of hours before sleeping. A recent discovery led to the photoreceptor known as Melanopsin, who is the main problem behind staying awake because of the blue light. Melanopsin has been discovered in the blue-light sensitive retinal ganglion cells, besides every cones and rods which are also another kind of prhotoreceptors. The examination proved that mobile devices which emit this blue light keeps the brain activity and therefore many people cannot sleep or fall asleep.
The most significant group of people are the teenagers, since they are at risk of this blue light more than any average adult. Circadian rhythm naturally changes during adolescence that is why teenagers are feeling able to stay awake long in the night. By playing video games or watching a TV show before bed, adolescents prolong the sleeping for one or two hours and mornings are quite difficult as a result of staying late.
Blue Light Isn’t The Only Concern
Many scientists all over the world joined their strength and knowledge to find what other devices can damage our vision or even our brain. Cell phones and WiFi cause multiple concerns and can be linked with risk of cancer. More considering fact is the usage of this devices by children because they absorb radiation 4 times more than the adults, and they are practically born with phones.
The screen addiction is a clinical disorder in China, and young people are placed in a rehabilitation centers where they are completely isolated from media and radiation from the screens. These experimentations in the centers are not fully examined and the need of them makes the picture of the society even darker than we think.
What You Can Do
First, you must limit your time spending on screens before bedtime, make a plan before you sleep for turning everything off at least two hours. The alternative can be reading your favorite book.
Then, you can find an app for adjusting your brightness on the computer and download it since you can warm the color at night and brighten during day. It can also prevent the radiance of the blue light. There are other applications which can improve your sleeping problems as well.
There is always an improvement of changing your old unhealthy habits like screen addiction and help your vision.