Rising Early-Onset Colorectal Cancer Linked to Gut Bacteria
Colorectal cancer (CRC) has long been associated with older age, but recent research shows a troubling trend in younger adults. A study published in Nature found that “in the past two decades, the incidence of early-onset colorectal cancer, which affects individuals below 50 years of age, has doubled in many countries.” Similarly, projections from Frontiers in Immunology warn that “with changes in western dietary habits worldwide, the incidence of CRC is expected to increase steadily, resulting in 2.2 million new cases by 2030.” Emerging science suggests a key piece of the puzzle lies within our gut. “We think of our microbiome as a separate, living organism within our body. It’s made of billions of bacteria, predominantly growing in our colon. There is a small number of bacteria that does exist in our small bowel, oral pharynx and nasal cavities. Just like we have bacteria on our skin everywhere,” says Daniel Martin, MD, a gastroenterologist
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