The Katie Couric effect

Would you believe there are waiting lists for a colonoscopy, a screening test for colon cancer recommended at age 50? The test was made popular by “Today” show’s Katie Couric, whose colonoscopy was televised three years ago.

An article in today’s New York Times looks at this and other forces driving the surge in colonoscopies, which have their own risk factors including bowel perforation.

Tips for avoiding colon cancer from the National Colorectal Cancer Research Alliance:

* Exercise daily -- even a small amount.
* Don't smoke.
* Keep your weight in check.
* Limit your alcohol intake.
* Talk to your doctor about nutrition, screening tests, family history of polyps or cancer and your personal risk factors.