A. The most recent nationally representative surveys of the Pew Internet Project show how immersed teens and young adults are in the tech environment and how tied they are to the mobile and social sides of it. Some 95% of teens ages 12-17 are online, 76% use social networking sites, and 77% have cell phones. 

By James Stuart
Teenagers' bodies are still developing and they are establishing the health routines that they will follow as they become adults. Many teenagers spend as much as 21 hours a week in front of the television ( Also, research done by Stanford University indicates that children tend to eat more food while watching television. This contributes to child obesity, which can cause very serious health problems later in life.
Some researchers, such as Lee Rainie, director of the Pew Research Center, are concerned about the effect of technology on students' studies. According to research reported in the New York Times, children tend to perform an average of seven tasks, such as texting or checking email, while watching television. This number is significantly lower for older people. While this helps teach teenagers how to multitask, researchers are concerned that this will limit teenagers' ability to focus, subsequently affecting their performance i、

Teenagers are often discovering themselves and establishing their identity. Technology, particularly the images teenagers see on the Internet and in television and films, has a strong effect on this process. Images on television and in film perpetuate ideals and norms for body image and behavior, and some research bodies, such as The American Psychiatric Association, believe that teenagers and children often take their cues from television.


The news media have reported extensively on the dangers of "sexting" in recent years. Although the exact number is disputed, a number of teenagers are...

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