Bruce Willis (68)'s daughter Tallulah Willis (29) has revealed the reason why the family has actively publicized his dementia diagnosis. A close friend disclosed that Bruce Willis has completely lost his ability to speak.

On November 8 (local time), Tallulah Willis appeared on an episode of "The Drew Barrymore Show" and talked about her father, the legendary actor known for films like 'Die Hard,' who was diagnosed with frontotemporal dementia (FTD).

When Drew Barrymore asked why the family made such an active decision to go public about his diagnosis, Tallulah Willis said, "Well, I think it's twofold."

She continued, "It's important who our family is, but it's also really important to raise awareness about FTD." She added, "If we can take the issues we are struggling with as a family and personally help others, and turn it into something beautiful, that would be really special for us." Beauty has always been precious to Bruce Willis.

Drew Barrymore also asked about the 'state' Bruce Willis is currently in, to which Tallulah Willis responded, "He's the same," and "When I'm with dad, all I see is love. He is our father, and he loves me."

Tallulah Willis is the third daughter of actor Demi Moore and Bruce Willis. The two were married in 1987 and divorced in 2000.

Subsequently, Bruce Willis married model Emma Heming in 2009, with whom he has two daughters.

Meanwhile, last October, director Glenn Gordon Caron, a close friend of Bruce Willis, told Page Six, "He has completely lost his ability to speak."

He also said, "He used to love reading very much - he didn't want anyone to know that - but now he is not reading books. He can no longer use any language ability. But he is still Bruce. When you're with him, you can tell he's Bruce." He expressed gratitude that Bruce Willis is still himself, but also shared a sense of loss for an important joy in life.

Bruce Willis was diagnosed with frontotemporal dementia (FTD) less than a year after announcing his retirement due to aphasia. He had stepped back from acting last year as he began battling the disease that deteriorated his language abilities. FTD affects the lobes of the brain behind the forehead, which deal with behavior, problem-solving, planning, and emotions, and comes with symptoms including personality changes, compulsive behavior, and difficulty speaking.