In 2012, Joy Milne, a retired nurse, claimed she could smell Parkinson’s disease. Yes, really. Her husband had been diagnosed with it, but long before that, she noticed his scent had changed—and not for the better. Scientists were sceptical, but after an experiment where she sniffed t-shirts worn by Parkinson’s patients and healthy individuals, Joy correctly identified every case… except one.

Except—plot twist—the "mistake" turned out to have Parkinson’s after all, diagnosed months later. Meaning Joy’s nose had detected the disease before medical science could. Further research found Parkinson’s sufferers produce distinct chemical compounds in their skin, leading to a groundbreaking new diagnostic test.

But here’s where it gets even stranger—Joy can also sniff out Alzheimer’s, tuberculosis, cancer, and diabetes. She’s essentially a real-life superhero, only instead of flying, she’s out there diagnosing diseases with her nose. The catch? She’s decided not to tell people what she smells, because honestly, would you want to know years in advance that something awful is coming for you?

Her ability remains a scientific mystery, but one thing’s for sure—Joy Milne’s nose could change medicine forever.