A Beginners Guide To Light Health
Light is one of the most fundamental elements when it comes to creating life in the universe, we are no exception. So when it comes to health, we need to account for more than just the UV spectrum of light. Blue light is shown to be toxic when the dose is too high. Here is a quick guideline to go by when starting out. For more information message me! 
Interesting infographic. Blue light is definitely something I have to keep a watchout for. That's why I recommend people to get f.lux for their computer screens, it helps reduce the blue light.
For sure! f.lux, and iris for the computer , and twilight or the iOS color filters for the phones. Iris seems to work better because of the "Sleep Mode" which makes the screen completely red.