Carrying an iPod with earphones plugged in, singing along,  symbolizes teenagers. But a new study shows that listening to too much music can cause higher risks of depression in youngsters.

The study, led by Dr. Brian Primack, an assistant professor of medicine and pediatrics at the University of Pittsburgh School of Medicine, found that teens who reported listening to music more often — rather than using other types of media like TV and books — were at higher risk of having major depressive disorder (MDD), compared with teens who listened to music less frequently. With each level increase in music use, teens had an 80% higher risk of depression, the study found, reports TIME.

Primack is unsure whether depressed people incline towards listening to music to escape from reality or people who listen to music all the time lead towards depression, or both.

There was a study headed by Primack that concluded depression rates to drop 50% in those teens who spent their time reading. ”This is worth emphasizing because overall in the U.S., reading books is decreasing, while nearly all other forms of media use are increasing,” Primack said.

Primack not certain if larger amount of music is causing teens to become depressed but this study shows how parents can identify their troubled teen.

Read it at TIME.