In this episode of Science Quickly, one of SciAm’s Young American Scientists, biologist Jaye Gardiner, explores how common viral infections may raise cancer risk—not just through genetic mutations but by reshaping the body’s “extracellular matrix” of molecules that support cells and tissues. She explains how viruses can alter the extracellular matrix, potentially creating conditions that allow tumors to grow, and why this emerging view could change how we think about everything from colds to long COVID.Recommended Reading:Jaye Gardiner’s Young American Scientists profileJoin our Summer Reading Challenge E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover!Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Marielle Issa and Aaron Shattuck. Our theme music was composed by Dominic Smith.This episode is part of “The Young American Scientists,” an editorially independent project that was produced with financial support from Regeneron. Learn more about your ad choices. Visit megaphone.fm/adchoices