Scientist who used himself as guinea pig!
Werner Forssmann had a plan — a plan he knew his superiors would never approve. The 24-year-old German surgeon was frustrated by how difficult it was to access the human heart, but he doubted he’d get permission to perform a risky new procedure. And so, in 1929, he tried it on himself, thereby joining an age-old club: scientists who use themselves as guinea pigs.
He lost his job when he published his results without getting permission, but 26 years later, he was sitting in a bar when his wife rushed in with a message: He’d just been awarded the Nobel Prize for his discovery. Today, cardiac catheterization is common, widely and safely used to find heart defects, deliver medicine and open up blocked arteries.
Forssmann shared the Nobel Prize in Physiology or Medicine 1956 "for their discoveries concerning heart catheterization and pathological changes in the circulatory system".