A study from the Pittsburgh School of Medicine compared the depression statistics of teenagers with the amount of time the spend consuming various forms of media. As it turns out, those teenagers who spent the majority of their time listening to music were 8.3 times as likely to be depressed than students who didn’t spend most of their time listening to music.
On the flip side, (and this certain to cause many of our teenage readers to roll their eyes) the adolescents who read books the most were only 1/10 as likely to be depressed. Of course, this limited study can’t make any claims one way or another as to how music and books are related to depression. Maybe excessive music-listening causes depression, or maybe music is just a good coping mechanism for teens who are already depressed. Maybe books lift people’s spirits, or maybe the fact that depressed people have difficulty concentrating on books is a more relevant consideration.
You should make sure to read about the study yourself, and then you can decide.