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  1. TrueDark
  2. TrueDark Science
  3. General

General

Learn about Junk Light, your circadian rhythm, and more!

  • What is junk light?
  • What is your “circadian rhythm”?
  • Why is it so important to maintain your natural circadian rhythm?
  • How does junk light affect your health?
  • Where can I find more information and studies about blue light and its harmful effects?
  • What is TrueDark technology and how does it work?
  • What wavelength ranges (nm) do TrueDark glasses block? And how much?
  • Why should I invest in TrueDark Daylights and Twilights?
  • How do I know which glasses will fit my face best?
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