Fatal familial insomnia also known as sporadic fatal insomnia is a very rare genetic disorder recorded in only 50 families worldwide. Fatal familial insomnia ffi is an inherited prion disease that mainly affects the thalamus. Fatal Familial Insomnia Symptoms And Stages Howstuffworks Sporadic fatal insomnia a serious kind of insomnia you are very unlikely to get. Fatal insomnia cure . It s an extremely a rare condition which physically affects an individuals ability to sleep. Fatal familial insomnia is a hereditary sleep disorder that currently affects about 30 families throughout the world making it extremely uncommon. It was first detected in 1974 by dr ignazio roiter from italy. He found two women who had supposedly died of insomnia. It is known as fatal familial insomnia ffi and i think this may truly rank high on the list of the worst ways to die. Fatal familial insomnia is an extremely rare condition that leaves some people with an inability to sleep. Signs s