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The Real Impact of Blue Light on Eye Health and Sleep

ReachMD Healthcare Image
11/13/2023
interestingengineering.com
  • Blue light from screens is often pointed to as bad for our sleep.
  • This has led to a growing market for blue light-blocking glasses.
  • But do these glasses really work? Let's find out.

Blue light is a type of visible light that is naturally emitted by the sun and artificially by LED-based screens, such as the ones on modern tablets, flat-screen TVs, smartphones, laptops, etc. 

According to a report by DataReportal, the average American spent just under 7 hours a day in front of screens in 2021, almost an hour more per day that in 2013. In the case of Gen Z, they spend up to 9 hours per day in front of screens.

This means that we are exposed to a lot of blue light, and this is believed to put us at a higher risk of vision problems and sleep disruption. 

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Schedule27 Feb 2024