Watching a lot of TV during adolescence can change a normal brain to a depressive one

Health scare of the week: Does TV damage teen brains? - Subscriber Only - THE WEEK:

"Watching a lot of TV during adolescence, an alarming new study has found, can change a normal brain to a depressive one. The study, which tracked more than 4,000 adolescents as they grew up, found that for every extra hour a teen spends watching TV or playing videogames on an average day, he or she is 8 percent more likely to develop depression as an adult. Study author Dr. Brian Primack says that teens’ experiences help shape their developing brains, and that being parked in front of a screen often replaces positive social, academic, and athletic activities that give kids a sense of mastery and self-respect. Instead, he tells the Los Angeles Times, TV teaches kids to be passive, and to judge themselves against fictional characters whose looks and accomplishments seem out of reach."