Colorectal cancer is the second-leading cause of cancer-related deaths in the U.S. and while screening tests such as colonoscopy could help in early detection and survival, many Americans choose simply to skip it.
In fact, a 2013 report from the Centers for Diseases Control estimates that one in three adults who are 50 to 75 years old have not been tested for the disease. One major reason is the bowel prep necessary to perform a colonoscopy, a common screening test. People have to drink foul-tasting purgatives and in many cases miss a day's worth of work to properly prepare for the procedure.