New research from an Iowa State University psychology professor finds smartphones are causing a “seismic shift” in sleep patterns among teenagers. I-S-U’s Zlatan Krizan and a colleague at San Diego State University found teens who spend more than two hours a day on their smartphones get fewer than seven hours of sleep a night.
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Krizan and his colleague reviewed surveys of more than 360-thousand American teenagers. They found an “abrupt shift” in sleep patterns, just as more teenagers began using smartphones to text and gain access to social media sites. Krizan says the sleep deprivation leads to a “lack of energy and motivation.”
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Health professionals recommend that teenagers get about nine hours of sleep each night. Krizan’s new research on teen sleeping habits has been published in the journal “Sleep Medicine”.
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