The Story of “The Family That Couldn’t Sleep” Do you love a good mystery? D. T. Max has written a beautiful medical mystery that shows how one disease, known as fatal familial insomnia or FFI, along with other prion diseases helped to change the medical world and how we see genetics. You may be wondering exactly what a prion disease is but have no fear I will be explaining that later in my essay. One thing you should know to get you started is that a prion is a protein that does not always…