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Last updateWed, 01 Oct 2014 1pm

Some researchers say the light from devices iPad and laptops may alter internal clocks and sleep cycles - CNN (article link)

So, for one month, whenever the sun set, he turned off all the gadgets and lights in his house -- from the bulb hidden in his refrigerator to his laptop computer.


Trouble sleeping? Maybe it's your iPad
http://www.cnn.com/2010/TECH/05/13/sleep.gadgets.ipad/index.html?hpt=Sbin