https://medium.com/@caseorganic/why-blue-light-is-so-bad-the-science-and-some-solutions-d992a352464b

“Why the Color of Technology Must Change” touched on the health issues caused by the pervasive use of blue light and blue screens in our technology devices. After Fastco Design featured my essay, I got in touch with Bill James of Healthe, a Minnesotan company that’s integrating blue-filtering technology into the everyday products we use. Our conversation delved into the problems associated with prolonged exposure, the industry’s efforts to address it — and some steps we all can take, to minimize these health issues.

Understanding the physics of light and how it interacts with the human eye is the first step to understanding why too much of it can be bad for us.