Or
Enter your email address and we'll send you a link to reset your password.
To view this video please enable JavaScript, and consider upgrading to the latest web browser
Teenagers are often described as erratic, unthoughtful, and rapidly changing human beings. But is there a universal explanation for the stereotype? FRONTLINE reveals new scientific studies that dig deep into the workings of the teenage mind.
Our movie and video library can only be streamed or downloaded by members only