Imagine getting a shot as a kid and, nearly 50 years later, it triggers a deadly brain disease. That’s what happened to a woman in the US—her childhood hormone treatment hid a prion, a rogue protein that can silently lurk for decades before rapidly destroying the brain. Prions are wild: they’re nearly indestructible, don’t have DNA, and can turn your brain into a sponge. Thankfully, these cases are super rare, but this story is a chilling reminder of how medical history can come back to haunt us. #MedicalMystery #PrionDisease #ScienceFacts #Health