While light of any kind can suppress the secretion of melatonin blue light at night does so more powerfully.
Harmful effects of blue light from e gadgets.
Note however that the majority of studies covered in this section deal with associations only which means that a cause and effect relationship hasn t been.
The sun produces blue light along with the other colors of the spectrum and so we are exposed to it naturally.
Yet protection from the harmful effects to the retina offered by anti blue light screens filters and sunglasses varies and their ability to preserve sleep rhythms is not proven anses also.
Blue light exposure may increase the risk of macular degeneration.
The blue light.
Blue light has the shortest wavelengths detectable by the human eye.
The fact that blue light penetrates all the way to the retina the inner lining of the back of the eye is important because laboratory studies have shown that too much exposure to blue light can damage light sensitive cells in the retina.
Studies have concluded that blue light can also cause detrimental shifts in circadian rhythms leading to problems with diabetes and obesity.
Negative effects of blue light.
Blue light exposure you receive from screens is small compared to the amount of exposure from the sun.
On average 30 of the natural light that you take in every day is blue light.
And yet there is concern over the long term effects of screen exposure because of the close proximity of the screens and the length of time spent looking at them.
Just an hour of exposure from a glowing device like a phone suppressed melatonin by 23.
Another study looking at teenagers suggests they may be even more sensitive to light at night.
To further understand the different effects of blue light below is a list of its beneficial and harmful effects on our health.
As mentioned blue light also comes from natural source and this type of blue light gives us health benefits as opposed to the harmful effects that are attributed to the blue light emitted by various technologies.
But exposure to intense amounts of blue light may be harmful to the eyes.
1 potential negative effects of blue light exposure during the night the following adverse effects are commonly associated with increased exposure to blue night during the night.
But it goes way beyond that.
Harvard researchers and their colleagues conducted an experiment comparing the effects of 6 5 hours of exposure to blue light to exposure to green light of comparable brightness.
Blue light also inhibits the body s natural process of producing melatonin which influences the circadian cycle regulates sleep and many other things as scientists are now aware.
