Mark Goulston, M.D. Author and psychiatrist, Mark Goulston, reveals the critical warning signs of a potentially violent teenager. Many people can shrug off insults or irritations, but a combination of biological, psychological and social factors work to create a violent young person. Goulston also offers methods to calm down an angry teen (or anybody) and how to heal from a violent episode.

About the author:
Mark Goulston, M.D. helps high performing leaders, sr. managment and sales people reach their full potential using skills he learned traing FBI and police hostage negotiators. He is the author of "Get Out of Your Own Way at Work" and the upcoming, "PTSD for Dummies" (Nov. 07). www.markgoulston.com.