E-readers and tablets seem to alter your sleep schedule

[Gutenberg]

E-readers and tablets really do seem to alter your sleep schedule

In less than a decade, reading has shifted from the medium it dominated for centuries—paper—to screens of various sorts. The change in habit has been accompanied by concerns over whether this could be influencing sleep. Exposure to light biased toward blue wavelengths, such as that produced by the screens of tablets, has been shown to alter the circadian rhythms that set the body's clock.

read more: http://arstechnica.com/science/2014/12/ ... -schedule/