cell phones are definitely part of today's youth culture. sixty percent of U.S. teens have cell phones and soon over 50 percent of kids age 8 to 12 will have them, too. students in grade 7 through 12 spend an average of an hour a day talking on their cell phones. that's about the same amount of time that they devote to homework.
the majority of cell phone usage is for text messages,and heavy users check for replies frequently. the heaviest users check their phones approximately every 10 minute. they often become irritated when other people don't respond to their messages quickly. heavy reliance on a cell phone can become a problem-and an obsession