Our smartphones are designed to emit a blue light in order to help us read from the screen even in the sunniest days. Yet, this light is being constantly released throughout the day from all our gadgets, computers, and TVs.
Apparently, it makes our brain confused as it imitates the sun, and it believes it is a day even at night. Therefore, it stops the production of melatonin and the person experiences sleeping difficulties.
This is why experts recommend to turn off all screens at least two hours before bed.
Melatonin is released by a tiny organ in your brain called the pineal gland a couple of hours prior to sleep. The science of why the blue light emitted by mobile devices keeps people awake has led to the discovery of a photoreceptor called Melanopsin.
Though we’ve long been familiar with the various cones and rods that construct our vision, Melanopsin was discovered recently in retinal ganglion cells, which are sensitive to blue light. Since then, experimental research has found that the average person using mobile devices before bed may have difficulty falling and/or staying asleep.
The impact of blue light is even more significant for teenagers, who are more vulnerable to the effects of light than adults. This is because circadian rhythm naturally shifts during adolescence, causing teenagers to feel more awake late into the night. Starting up a video game or television show just before bedtime could be enough to push sleepiness away for another hour or two, making early mornings particularly difficult.
Blue light is not the worst thing there is…
Of the Department of Physiology and Cellular Biophysics Colombia University, Dr. Martin Blank got in a group of experts who appealed to the UN about these dangers of electromagnetic radiation from phones or Wi-fi.
Many concerns exist about such devices like even cancer causing. The brain of a child gets 4 more times radiation than an adult and sadly all kids have electronics near them.
In China, if you are addicted to such electronics it is named an official clinical disorder. And many rehab centers have young people in them to isolate them from electronics. This is yet to be proven if it works.
What to do?
To build a healthier relationship with these devices, here are a few rules to follow:
– As the night goes on, reduce your use of electronic devices and shut them off completely about 2 hours before bed. Wind down by doing chores, practicing yoga, taking a bath, or reading before going to sleep.
– Download a red-filter app or change your phone’s settings to lower the brightness of your screen in the early evening.
– Keep all electrical devices out of the bedroom to avoid radiation exposure while you sleep.
It’s that simple!