Many people have probably heard about this, but is there actually any truth in it?īlue light emitted by devices like the Kindle Paperwhite has the ability to impact your circadian rhythm, which is what dictates your sleep cycle. One of the biggest common health concerns relating to digital screen use is how they affect our sleeping patterns. Does reading a Kindle Paperwhite affect sleep? However, much like EMF radiation, concerns are related to over exposure. After all, it’s produced by the sun and any device that emits white light. Blue light is particularly common in backlit screens, and is definitely more of an issue on white screens such as the Kindle.īear in mind, however, that it’s inevitable for us to be exposed to some amount of blue light. While the Kindle Paperwhite has a different type of screen to digital devices such as smartphones or tablets, it still produces blue light. The reason this is a concern for many screen users is because blue light can lead to eye strain, among a number of other health concerns. This, combined with the eyes’ inability to filter blue light effectively, are 2 things that contribute to digital eye strain.ĭigital screens emit blue light as part of the spectrum of visible light they emit. It falls on the shorter end of the spectrum of visible light, and short wavelengths mean that they have more energy. By extension, this also means it’s part of the electromagnetic spectrum.Īlong with other colors of visible light, such as red, green, orange and yellow, it makes up white light, which is the type of light produced by the sun. As an affiliate, I may collect a share of sales or other compensation from the links on this page.īlue light is also known as high energy visible light, and as the term implies, it’s part of the spectrum of visible light.
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