What if you could carry life-saving blood in your pocket? In this episode of Breakthrough Broadcast, host Drew explores the science behind artificial blood—engineered materials that could deliver oxygen in emergencies when donor blood isn’t available. From battlefield trauma to deep-space missions, artificial blood has the potential to change how we respond to crises where every second counts. But building a safe, effective substitute for human blood isn’t easy. You'll learn about the early failures, the promising breakthroughs, and the complex biology that makes oxygen delivery so challenging. We dive into hemoglobin-based carriers, nanotech innovations, and the ethical and regulatory hurdles that still stand in the way. This episode separates hype from reality and shows how precision engineering—not mimicry—might be the future of emergency medicine. Whether you're a student, a scientist, or just curious, this is a story of innovation under pressure—and the race to buy time when life hangs in the balance.