Not that many people get excited about the prospect of having a doctor put a scope up their bum, but consider the alternative: 50,000 people die of colorectal cancer each year. If everyone got screened, that number could be cut in half, says Dr. Jordan Karlitz, an associate professor of gastroenterology at Tulane University and a member of the National Colorectal Cancer Roundtable.

Tragically, many people do not get screened - some because they lack access to information and healthcare, and others who know they should get screened and have access but are squeamish about anything poop-related, or fearful that it will be painful or embarrassing.