Teen risk taking. Forget what you thought you knew

We know adolescents take risks, but what might surprise you is that they DON'T think they are invincible. In fact they tend to over-estimate their risk. So why do they engage in risky behaviour and what can be done about it? Dr. Jess Shatkin has been doing ground breaking research in this area for around 15 years. He is a physician and child, adolescent and adult psychiatrist, also founder and director of one of the USA's largest training programmes in psychiatry at the NYU School of Medicine. He is also the author of "Born to be Wild: Why teens take risks and how we can keep them safe."