Unless you have a family history of colon cancer, get your first colonoscopy at 50. If your results are normal, don't get another for 10 years. Having the procedure more frequently increases the risk of bowel punctures and false positives.
Credit: Getty Images
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
Duke Lacrosse and the Fog of Scandal
How Thailand's Most Notorious Prison Became a Fight Club
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.