When using your smartphone and even laptop, their screen emits a bright blue light that enables you to see the content on the screen.
The problem is this light tends to mimic the light emitted by the sun and in turn your brain is distracted into believing that it day time when in fact it is night and you should be preparing for bed.
This causes your brain to reduce the amount of sleep inducing hormone known as melatonin it usually would, thereby keeping you awake and causing insomnia as well as other sleeping disorders.
Your pineal gland which is a small organ in your brain is responsible for the release of melatonin. When you make use of your gadgets like your laptop and smartphone before bedtime your Melanopsin located in your retinal ganglion cells that are sensitive to blue light are affected causing you to stay up all night rather than fall asleep.
The blue light emitted by your smartphones, laptops and television sets are even more influential to teenagers than to adults, this is because circadian rhythm tends to shift more in adolescents than adults leading to teenagers staying up all night.
This can also be due to teenagers increasing use of blue light emitting devices, sometimes using these devices long into the night.
Other electromagnetic emitting devices like WiFi and cellphone devices are also a cause for concern according to Dr. Martin Blank of the Department of Physiology and Cellular Biophysics at Colombia University.
It is believed that the brain of a child absorbs four times more radiation than a typical adult. In China screen addiction is a major problem and we even considered an actual clinical disorder.
So What’s The Solution?
The first thing you should do is to limit your screen viewing time especially before bedtime.
You can read a book before bedtime but with good, bright light.
When you stop using blue light emitting devices before bedtime your desire to sleep will improve and you will no longer experience insomnia and sleeplessness.