Colorectal cancer screenings should start at age 45, new guidelines say
New guidelines say most people should start colorectal cancer screenings earlier. The American Cancer Society says testing for men and women at average risk should begin at age 45 instead of 50. The change comes in response to a 51 percent rise in colon and rectal cancers since 1994 in adults younger than 50. CBS News chief medical correspondent and gastroenterologist Dr. Jon LaPook joins "CBS This Morning" to discuss the guidelines.