A new study has found that rates of colon and rectal cancers have declined overall since the 1980s, but researchers also made a puzzling discovery. Colon and rectal cancer rates have actually gone up for people in their 20s and 30s.
In this Mayo Clinic Minute, Dr. David Etzioni, a colon and rectal surgeon at Mayo Clinic, explains details of the study's findings and possible reasons why younger people's colon and rectal cancer rates are going up. Ian Roth reports.
Journalists: Broadcast-quality video pkg (0:58) is in the downloads. Read the script.