Actor Bruce Willis has frontotemporal dementia, according to his family.
They posted a message on social media saying it was "relieving to finally have a clear diagnosis.".
The 67-year-old's aphasia, which impairs speech, was initially diagnosed in the spring of last year, but as the condition worsened, a more precise diagnosis was made, according to the family.
Their "deepest gratitude for the incredible outpouring of love" was expressed.
The family continued by saying that frontotemporal dementia is the most prevalent type of dementia in people under the age of 60.
There are currently no cures for the illness, but we hope that will change in the years to come, according to the statement. " .
Willis rose to fame in the 1980s and 1990s as a result of his roles in popular movies like Die Hard, The Sixth Sense, Armageddon, and Pulp Fiction.
He has also received five Golden Globe nominations, winning one for Moonlighting, and three Emmy nominations, winning two.