 Our study suggests that certain bacteria in the gut and mouth are linked to longer lifespans. Specifically, certain strains of bacteria in the gut, including choreobacteria C. annuxalobacter, were found to be protective against diseases and increase the odds of longevity. Conversely, other strains of bacteria, such as those responsible for colorectal cancer, were found to decrease longevity. Additionally, the reverse MR analysis showed that people who are genetically predisposed to longevity tend to have more abundance of prevetella and paraprevetella in their gut, while having lesser amounts of bacteroids and fusobacterium. Furthermore, our study found that centenarians have a lower gut microbial diversity than non-centenarians, but no differences in oral microbiota. These results suggest that the gut microbiome plays a role in human longevity, and that the location of these microbes may differ depending on population. This article was authored by Xiaomin Liu, Leng Zhu, Chaonai, and others. We are article.tv, links in the description below.