Blue light is a type of visible part of the electromagnetic spectrum that has a wavelength ranging from about 400 to 500 nanometers. It can be emitted by natural sources such as the sun, but also by artificial light sources such as incandescent lamps and LED lamps.
Is blue light harmful to health?
Some research suggests that long-term exposure to blue light may have a negative impact on our health.
Blue light can disrupt our natural circadian rhythm, which can lead to sleep problems and fatigue. It can also lead to damage to the retina and worsen vision in the long run.
It is also recommended to avoid prolonged looking at electronic device screens before going to bed and to use glasses with filters if you have to work at a computer or other electronic device for a long time.