As SELF has previously reported, visible light occupies wavelengths between about 380 and 700 nanometers (nm)—blue light falls between 400 and 500 nm on that spectrum. Effective blue light eyeglasses ...

These days it's nearly impossible not to spend hours a day staring at a screen. For many of us, it's an all-day affair as we move from work computers to social media scrolling to streaming ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...