His family reported on Thursday that Bruce Willis' health has deteriorated, and he has been diagnosed with frontotemporal dementia nearly a year after being diagnosed with aphasia.

Since his "condition has progressed," his family revealed on Thursday that the 67-year-old actor now has a more specific diagnosis of frontotemporal dementia.

Their statement stated, "While this is painful, it is a relief to have a clear diagnosis finally."

"FTD is a cruel disease many of us have never heard of, and [it] can strike anyone."

In March of last year, Willis's family said that his aphasia had impaired his cognitive abilities and that he would retire from acting. This disorder results in the inability to comprehend or convey speech.

According to his family, speaking difficulties are merely one of the symptoms of frontotemporal dementia.

"Currently, there are no treatments for the disease, which we hope will change in the coming years," they stated.

"As Bruce's condition worsens, we hope that any media attention will be directed toward shedding light on this disease, which requires significantly more awareness and research."

Willis's wife, Emma Heming Willis, his ex-wife Demi Moore, and his five children, Rumer, Scout, Tallulah, Mabel, and Evelyn, all signed the statement that was put on the website of the Association for Frontotemporal Degeneration.