Morilogium
Morilogium was the final stage of the Ocampan lifespan, occurring mostly in an Ocampan's ninth and final year of life. Symptoms of the onset of morilogium were the rapid appearance of age, including wrinkles and graying hair, as well as severe memory loss.

In an alternate 2378, Kes went through the morilogium on board the  and eventually lost over 99% of her memory engrams. ()

de:Morilogium
Physiology