What is blue light and why is it harmful? 1. Blue light is part of the visible light spectrum: AKA what the human eye can see. It has the shortest wavelength and the highest energy. The most significant source of blue light is sunlight. 2. There are some benefits of blue light including increased alertness, as well as helping to improve your memory and cognitive function. Prolonged exposure to artificial blue light is thought to be harmful. 3. Continued exposure to artificial blue light is thought to damage retinal cells…
