Hypochondria: Diagnosis

Dr. Jon LaPook talks about hypochondria and when it becomes a problem. Dr. Bill Fisher explains that hypochondria is an overwhelming fear of having a serious disease.

It must cause extreme distress and or dysfunction and last for at least six months. Another man explains how he thinks he has hypochondriac tendencies. How much of the U.S. population is afflicted with hypochondria? What are treatment options?