Knowing that smartphone use has increased in tandem with sleep deprivation rates, Marcus and his colleagues decided to investigate whether the two might be related. For the new smartphone study, Marcus dipped into this wealth of information to conduct his own "sub-study." JUST WATCHED How your smartphone affects your sleep Replay More Videos ... MUST WATCH How your smartphone affects your sleep 01:31These participants had already reported their sleep hours and sleep quality using a validated questionnaire as part of the general Health eHeart experience, Marcus explained. "We can't exclude the possibility that some people can't sleep for some completely unrelated reason, and because they can't sleep, they're using their smartphone, just to pass the time," Marcus said. diabetes, According to Kline, who was not involved in the new study, sleep deprivation is associated with metabolic disease and increased appetite.

Source: CNN November 09, 2016 18:56 UTC