People have cell phones everywhere, especially teenagers. Teens are glued to their cell phones; they need cell phones almost everywhere they go. Teens today depend on their phones for everything. The number of cell phone users has increased, and in 2010 there were more than 303 million subscribers in the United States, according to cell phone companies (Hanna). As a result of excessive use of cell phones, teenagers are affected emotionally, socially and physically. One way that teenagers are affected by the excessive use of their cell phones is emotionally. A study conducted by Adriana Bianchi and James G. Phillips showed that the more teenagers use the phone, the more likely they are to be anxious, depressed and have low self-esteem (“Center on Media and Child Health”). In a study conducted by Thomee, researchers found that cell phone use caused mental health problems in young adults. Both males and females were affected emotionally. For men in the study, excessive cell phone use caused sleep problems, and for women it caused depression. Teens use the phone more often than in the past, which leads to more emotional problems. Jacob Barkley, an associate professor at Kent State University, found that students spent nearly 5 hours a day using their cell phones and sent approximately 77 text messages. He also found that the more the students used their cell phones, the more anxious they became because they felt pressured to stay constantly connected to social networks (“Heavy cell phone users suffer from anxiety: study”). As teens use their phones more often, this can cause more anxiety and other emotional problems. Another way teens are affected by cell phone use is socially. Today's cell phones allow teens to access... middle of paper... rules for their family. Works CitedChillers, MJ. Parker, MB "The social impact of mobile phones on adolescents" Faculty of Computing and Design Cape Peninsula University of Technology, Web. 24 February 2014. Cape Town, South Africa. Geser, Hans “Cell Phone Adoption by Preadolescents: Consequences for Subsequent Patterns of Phone Use and Engagement.” Web.February 24, 2014Hanna, Jeff. “Wand L Psychological Project Examines Cellphone Use and Teen Health” Web. February 24, 2014 Hargens-Bradley, Tamara “Help Your Teen Be 'Smart' About Cellphone Use at Night” Web. February 25 2014National Cancer Institute “Cell Phones and Cancer Risk” Web. February 25, 2014Ravidchardaran, SV “Cell Phones and Adolescents.” 2009, New Zealand.Web. February 25, 2014 “The downside of cell phones”. Center on Media and Children's Health .