Willis was diagnosed first with aphasia -- a condition where the brain's ability to understand or express language is impaired, according to the National Institutes of Health -- in 2022 before receiving an additional diagnosis of frontotemporal dementia in 2023, according to his family.

In an Instagram post shared by his wife Emma Heming Willis on Thursday, Willis can be seen shaking hands with a Los Angeles police officer.

Bruce Willis made a rare public appearance to thank LA firefighters, as shown in a video shared by his wife, Emma. Diagnosed with frontotemporal dementia in 2022, Bruce's family, including ex-wife Demi Moore and their children,