In medicine, hereditary hemorrhagic telangiectasia (HHT), also known as Osler-Weber-Rendu syndrome, is a genetic disorder that leads to vascular malformations.
http://en.wikipedia.org/wiki/Hereditary_h emorrhagic_telangiectasia
"Mormons from Utah" suffer from this disease at higher frequency than other populations on earth.
Any thoughts as to why? It must have SOMETHING to do with the milieu of early Mormondom.