Scientists search the microbiome for clues to the rise in colorectal cancers

DrAfter123/Digital Vision Vectors/Getty Images Like so many in her field, The Ohio State University oncologist Ning Jin is alarmed by the number of patients in their 30s and 40s with late-stage cancer in their lower digestive tract. It's not just that these patients are decades younger than what had been typical for colorectal cancer; Jin says the tumors themselves are also more stubborn to treat. …