Fatal familial insomnia ffi is a very rare sleep disorder that runs in families. Mastrianni md phd professor department of neurology. Unbelievable Facts Unbelievable Facts Funny Facts Random It affects the thalamus this brain structure controls many important things including emotional expression and. Fatal familial insomnia . Fatal familial insomnia kurz ffi handelt es sich um eine erbliche sehr seltene und im verlauf von monaten bis jahren stets tödlich endende übertragbare spongiforme enzephalopathie tse. Fatale familiale insomnia is een dodelijke ziekte. The thalamus is the part of the brain that controls the sleep wake cycle but is also known as the relay center of the brain because it helps the different parts of the brain communicate with each other. Fatal insomnia has no known cure and involves progressively worsening insomnia which leads to hallucinations delirium confusional states like that of dementia and eventually death. A very interesting documentary about f...