Are smartphones disrupting your sleep? Mayo Clinic study examines the question

Smartphones and tablets can make for sleep-disrupting bedfellows. One cause is believed to be the bright light-emitting diodes that allow the use of mobile devices in dimly lit rooms; the light exposure can interfere with melatonin, a hormone that helps control the natural sleep-wake cycle.

Fuente : http://www.eurekalert.org/pub_releases/2013-06/mc-...