erage, members of the study group used social media sites one hour a day. They also “visited various social media 30 times per week”.РThirty percent of the study's participants reported having serious problems with sleeping. Those people who used social media a lot were three times more likely to have a sleep disorder. And those who spent the most time on social media were two times as likely to suffer from sleep disturbances.РLevenson said the number of times a person visits social media is a better predictor of sleep problems than overall time spent on social media. If this is true, she adds, then practices that stop such behaviors may be the most effective.Р28. What's the main idea of the text?РA. The researchers focus on social media. B. The researchers manage to handle sleep problems.
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