Study: Bullying effects last years

Bullying is a problem most people identify with kids in school or on the playground - but a new study details how bullying can have a lasting effect on people years after it happens.

Pertussis vaccine recommended for teens

A new study shows the best way to protect infants from the potentially fatal whooping cough disease is to protect teens first.

Teens posting 'cutting' videos on YouTube

The YouTube videos are disturbing -- images of teens with their arms bleeding and scarred where they sliced into themselves with a razor blade or other sharp object; poetry about pain, loneliness and hopelessness.