A large retrospective cohort study showed that interval colorectal carcinomas (CRCs) were less frequent in patients of endoscopists with a better detection rate of sessile serrated lesions in screening colonoscopies.[1] The study was published in JAMA Network Open.[1] The article also discusses the connection between diabetes and pancreatic neoplasms.[1] Another topic is the definition of "gut health".[1] Secondary prevention includes screening for early detection of precancerous conditions and reduces mortality from colorectal cancer.[2] Colorectal cancer can take 8 to 10 years to develop, allowing for preventative measures.[2] A nationwide screening program for colorectal cancer was launched in the Czech Republic in 2000.[2] Primary prevention includes healthy eating, physical activity, and obesity prevention.[2]