Fatal familial insomnia is a hereditary sleep disorder that currently affects about 30 families throughout the world, making ...

The chief clinical features of FFI include a progressive and ferocious insomnia, waking "sleep," hallucinations, autonomic disturbances suggestive of sympathetic overdrive (tachycardia ...

The Cleveland Clinic calls fatal familial insomnia a “rare genetic condition” affecting the brain and central nervous system. Those affected may have trouble sleeping, memory loss and muscle ...

The genetic history of sisters Carolyn Schear (at right) and Cheryl Dinges puts them at risk for fatal familial insomnia, a deadly inability to sleep. Schear learned she doesn’t carry the gene.

Lachlan Webb was diagnosed with the incurable genetic disease fatal familial insomnia (FII) in 2023, a day after he and his wife Claire celebrated their son Morrison’s first birthday.

This important possibility suggests that aggressive symptomatic treatment of insomnia may extend life. Disclosure: Joyce Schenkein, PhD, has disclosed no relevant financial relationships.