As an actor, Bruce Willis was known for his ability to deliver one liners and think on his feet. However as he continues to battle frontotemporal dementia, his wife says the iconic star is losing his ability to communicate.

"Bruce is still very mobile. Bruce is in really great health overall, you know,” said Emma Heming Willis in an interview with ABC’s Diane Sawyer. “It’s just his brain that is failing him.”

The update comes two-and-a-half years after Willis’s family announced he’d been diagnosed with frontotemporal dementia. The disease forced the actor to retire and retreat from public life.

Heming Willis said she and the rest of the family have had to learn different ways to communicate with Bruce as his abilities continue to decline. Still, Heming Willis says there are times wher

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