Dark Side of Computers, Smart Phones, and Tablets

I use a computer and smart phone for more than 10 hours a day.

So I wasn’t happy to learn that recent scientific studies show the blue light emitted by our computers, tablets and smart phones can cause cancer, ruin your eyes, and cause insomnia.

Device makers use screens that pump out a lot of blue light.  Not for any evil purpose … but just because it’s cheap to make bright LEDs lights which pump out crazy amounts of blue light frequencies (light with a wavelength of between 450 and 495 nano...