(9) Approximately seventy percent of today’s teenagers communicate within online social networks, according to the Pew Research Center. (10) A survey of almost 7,000 teens was conducted in 2014 by three Swiss researchers, and they found that many of the surveyed teens believed they were spending too much time on these social networking sites.(11) Additionally, these teens admitted that they miss spending time with real people. (12) Perhaps these teens are discovering what they have been suggesting for a while: spending time with others in real life is important.
How can Susan improve the clarity (make more clear/specific) of sentence 12?