Negative Health Effects of Artificial Blue Light at Night And What You Can Do About It
Nighttime blue light exposure can derange the circadian rhythm . It is a culprit behind many modern chronic health issues, including obesity , metabolic syndrome, and cancer. On the other hand, blue light exposure during the day is very beneficial. Read this post to learn how to hack your blue light exposure for your benefit. What is Blue Light? Light is electromagnetic radiation of a variety of wavelengths within the electromagnetic spectrum. There is both visible and non-visible light. Non-visible light includes ultraviolet ( UV ) and infrared light, while visible light includes the whole spectrum of the rainbow, including blue light. Within the visible light spectrum, each wavelength is represented by a color. Of all the colors of the visible light spectrum, blue light (wavelength 446 – 477 nm) has the strongest impact on physiology and circadian rhythm because our pigments react to this wavelength ( R , R2 , R3 ). Humans have evolved to rise with the