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Teenagers Are Particularly Susceptible to Back-Lit Devices

Posted by Blue Block Glasses Team on May 17, 2015 . 0 Comments

Impacts of Backlit Devices on Teenagers

A new study shows that teenagers are more susceptible to impacts from use of backlit devices such as laptops and smartphones. The results of the study were published in the SAGE journal by the Lighting Research Center. 

If you know any teenagers - you already know that they are addicted to their phones. Actually, I should clarify that teenagers are probably just more addicted to their smartphones than everyone else. 

Before going onto the results of the Lighting Research Center it should be noted that smartphone usage among teenagers today is extraordinarily high. An alternate study conducted by Norwegian researchers on 10,000 adolescents between ages of 16 - 19 found that almost every single one of them used either a smartphone or laptop in the last hour before bed. (The duration of usage was not recorded). 


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Is Light Impacting our Sleep?

Posted by Daniel Giavedoni on March 28, 2015 . 0 Comments

For millions of years we as humans had access to only two types of bright light - the sun and fire. That changed in the modern era with the invention of artificial lighting and the means to support its use.

The following infographic explores the growth of artificial lighting in our everyday lives and the steady growth of study of sleep as a science.  

Infographic : Is Light Impacting Our Sleep? Growth of Multimedia and Increase in Sleep Related Problems

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Advances in Technology Causing more Blue Light Exposure than Ever Before

Posted by Daniel Giavedoni on March 25, 2015 . 0 Comments

Florescent bulbs and Light-Emitting Diodes (LED) lighting have become increasingly popular in recent years  - due to their lower cost and potential environmental benefits. However these savings come with a hidden cost.  While they have several benefits over old style incandescent bulbs you may have noticed that LED lights or florescent lights do not produce the same warm yellow color, instead producing isa whiter cooler light. This effect can be attributed to the type of light emitted - a lot more light in the violet and blue end of the visible light spectrum. Take a look at this comparison chart generated by Popular Mechanics. 

Colour Spectrum of Various Types of Light

Image Credit: Popular Mechanics, 2015 

As you can see - the light produced by LED and CFL...

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Light Emitting Devices Before Bed May Adversely Impact Sleep

Posted by Daniel Giavedoni on January 17, 2015 . 0 Comments

The use of a light emitting electronic device in the hours before bedtime can adversely impact us, a new study has found. Results show that blue light emitted by e-readers interrupts the body's natural circadian rhythm. This in turn causes reduced melatonin secretion, longer times to fall asleep and reduced next morning alertness. The study conducted by Brigham and Women's Hospital (BWH) who compared the biological impacts of reading a regular book to a book that had a back-lit screen. The findings were presented in the Proceedings of the Academy of Sciences on December 22, 2014. 

Blue Light Sleep

During the two week study, participants read either from a backlit e-reader or a regular printed book. Participants reading the e-reader took longer to fall asleep, were less...

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