As a university professor, I typically preface each lecture with, "It's time to put your cell phones away for the next 50 minutes." Reluctantly, and sometimes with what appears to be great difficulty, the students put their phones out of reach. Indeed, the cell phone's popularity is increasing along with its functionality in all populations, including college students. In fact, according to the Pew Research Center, more than 90 percent of college-aged adults own a cell phone.

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