from the beginning technology its getting batter every day and more powerful you have seen me approximately in every video talking about them and point to be noted i never forgot to address their down side and our update of episode 1 still has a grate story
but never the less this video bangs the title perfectly .let's began they r killing the eyes.
let's start with the most basic from led's to 4k displays and now 8 k wether they make the dark to look darker and bright to look brighter every single one of them
emit HEV light (also called blue light), staring at phone and tablet screens may actually harm our eyes permanently. HEV light is that portion of the visible light spectrum that comprises light with the shortest wavelengths in this image you can see a part of blue light falls under the part of uv light , which carry the greatest potential to damage living tissue. and even causes cancer that is why ozone is there
and although many people won't even realizes it how dangerous is it and how far ...........................................
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https://www.youtube.com/watch?v=VRTjpPPVQ74