brain, spinal cord, and nerve disorders
Fatal Insomnia
Symptoms of Fatal Insomnia
 early symptoms include minor difficulties falling and staying asleep and occasional muscle twitching, spasms, and stiffness. During sleep, people may move a lot and kick. Eventually, they cannot sleep at all. Later, mental function deteriorates and coordination is lost (called Coordination Disorders ). The heart rate may become rapid, blood pressure may increase, and people may sweat profusely. In thesporadic form,early symptoms include a rapid decline in mental function and loss of coordination. People with this form may not report sleep problems, but sleep studies can detect abnormalities. 