A new study suggests that excessive Facebook use by teens can lead to negative side effects, including narcissism, mania, and lower reading retention rates. The study was conducted by Larry Rosen, a professor of psychology at California State University and the author of Rewired: Understanding the iGeneration and the Way they Learn.
The study's findings weren't all negative - using social networks can help teens develop what Rosen terms "virtual empathy," an ability to share good feelings with online friends even in the absence of physical contact. As well, online networking can help introverted adolescents learn how to socialize safely.
Still, the overarching message seems to be that "overdosing" on technology on a daily basis can lead to increased absence from school, as well as a greater likelihood of developing stomach aches, sleeping problems, anxiety and depression.