Squishy, soft, and mostly made of water, hydrogels don’t sound like cutting-edge science, but beneath the jelly-like surface lies a powerful tool that’s changing medicine! In this episode, we uncover how hydrogels are being used to deliver drugs exactly where they’re needed, to rebuild damaged tissues, and even to model the hostile “neighborhood” of cancer in the lab. We learn about the science behind how hydrogels work, the challenges scientists face in making them stronger and smarter, and the incredible future possibilities, from 3D-printed organs to injectable gels that heal from the inside out!