Chronic stress speeds colorectal cancer's spread dramatically by disrupting gut microbiota -- the delicate balance of good and bad bacteria, a new study in mice indicates. The study, conducted in China, will be presented Sunday at UEG Week 2024, an annual conference of United European Gastroenterology in Vienna. Researchers demonstrated that chronic stress not only fueled tumor growth, but it also undermined beneficial gut bacteria, especially Lactobacillus genus, which are ...