Actor Bruce Willis suffers from dementia. The Hollywood star's family said they are now relieved to know his diagnosis.
The 67-year-old was diagnosed with aphasia, which causes speech difficulties, in the spring of last year, but the disease has progressed and he has been given a more specific diagnosis.
The actor's family revealed that frontotemporal dementia is the most common form of dementia in people under 60.
"Today there are no treatments for the disease, something we hope can change in the coming years," the statement said.
Willis became a household name in the 1980s and '90s after starring in blockbusters such as Die Hard, The Sixth Sense, Armageddon and Pulp Fiction.
He has also been nominated for five Golden Globes and managed to get an award for his role in Moonlighting. It was also nominated 3 times for the Emmy Awards, where it managed to win twice.
But he gave up acting because of the disease he was diagnosed with.
The statement was released by Willis' family members, including his wife Emma Heming, with whom he has two daughters, and his ex-wife Demi Moore and their three daughters.
Frontotemporal dementia is an "unusual" form of the disease that causes problems with behavior and speech.