People Share Their Super-Rare Genetic FeaturesBy Tammy Salt / August 30, 2019 13. Serpine1 scribol.com Scientists have discovered a rare gene known as Serpine1 and when it gets mutated, it gives the person who is carrying the gene an extra ten years of lifespan! The Amish people of Indiana are the ones who carry it. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19