Here's a little questionaire you all should work through. It's from the National Cancer Institute, and it uses the most recent colon cancer risk studies to provide a 5-, 10-, and lifetime colon cancer risk assessment. It takes just a few minutes, and seems to be a good way to start the New Year.
Vigorous physical activity strongly correlates against developing colon cancer, so cycling is strong preventative medicine. I took the test, even though it says it's not for people with a personal history of colon cancer, and came out with a 5.0% lifetime risk (that's based on my lifestyle now, not five years ago when I got sick). The survey is not well made for tinkering with the risk factors by changing the answer to a question to see how it affects the whole, but it's clearly worth a few minutes of your time, and worth spreading to your friends and family.
We've discussed the need for colonoscopies many times here; I challenge each of you to get five people this year into the doctor for the test. Show them this screening questionaire and show them how important it is to get the test. If you've not had it, now is the time.