Why? See this report from the New York Times -
The average young American now spends practically every waking minute — except for the time in school — using a smart phone, computer, television or other electronic device, according to a new study from the Kaiser Family Foundation.
Those ages 8 to 18 spend more than seven and a half hours a day with such devices, compared with less than six and a half hours five years ago, when the study was last conducted. And that does not count the hour and a half that youths spend texting, or the half-hour they talk on their cellphones.
And because so many of them are multitasking — say, surfing the Internet while listening to music — they pack on average nearly 11 hours of media content into that seven and a half hours.
“I feel like my days would be boring without it,” said Francisco Sepulveda, a 14-year-old Bronx eighth grader who uses his smart phone to surf the Web, watch videos, listen to music — and send or receive about 500 texts a day.
The study’s findings shocked its authors, who had concluded in 2005 that use could not possibly grow further, and confirmed the fears of many parents whose children are constantly tethered to media devices. It found, moreover, that heavy media use is associated with several negatives, including behavior problems and lower grades.
The third in a series, the study found that young people’s media consumption grew far more in the last five years than from 1999 to 2004, as sophisticated mobile technology like iPods and smart phones brought media access into teenagers’ pockets and beds.
Contrary to popular wisdom, the heaviest media users reported spending a similar amount of time exercising as the light media users. Nonetheless, other studies have established a link between screen time and obesity.
While most of the young people in the study got good grades, 47 percent of the heaviest media users — those who consumed at least 16 hours a day — had mostly C’s or lower, compared with 23 percent of those who typically consumed media three hours a day or less. The heaviest media users were also more likely than the lightest users to report that they were bored or sad, or that they got into trouble, did not get along well with their parents and were not happy at school.
The report is based on a survey of more than 2,000 students in grades 3 to 12 that was conducted from October 2008 to May 2009.
On average, young people spend about two hours a day consuming media on a mobile device, the study found. They spend almost another hour on “old” content like television or music delivered through newer pathways like the Web site Hulu or iTunes. Youths now spend more time listening to or watching media on their cellphones, or playing games, than talking on them.
“I use it as my alarm clock, because it has an annoying ringtone that doesn’t stop until you turn it off,” Francisco Sepulveda said of his phone. “At night, I can text or watch something on YouTube until I fall asleep. It lets me talk on the phone and watch a video at the same time, or listen to music while I send text messages.”
Ah, the heterological nature of “progress,” eh?