Teenagers who use smartphones, laptops, and tablets more often than their peers take longer to fall asleep and sleep for less time overall, a new study published in the journal BMJ Open shows. The finding suggests that if teenagers want to sleep better, they should try looking at screens less.
"The more you spent on devices the less you slept and the longer it took to fall asleep."
Researchers surveyed more than 10,000 16-to-19-year-olds from Norway, questioning them about their use of electronics and sleeping habits. Those who used gadgets including MP3 players, video game consoles, tablets, smartphones, and computers for more than five hours a day were three-and-a-half times more likely to sleep for fewer than five hours at night,...
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