Researchers have uncovered the mechanism underlying frontotemporal lobar degeneration (FTLD) caused by variants in the valosin-containing protein (VCP) gene. Their study, which used a fruit fly model,

The retired actor — currently battling frontotemporal dementia — was seen in a rare video speaking with LA wildfire first responders.

Last month, Bruce's ex-wife, Demi Moore, gave an update on his well-being amid his battle with dementia. In an interview with CNN, the 62-year-old actress explained that the actor is "in a very stable place," but it hasn't been easy watching him struggle.

Demi Moore is reportedly making her ex-husband Bruce Willis' 'peace and comfort' her 'central mission' as he continues his battle with frontotemporal dementia

Demi Moore is keeping her ex-husband Bruce Willis' "peace and comfort" at "the very top of her list of priorities" and is spending more time with him to help his current wife, Emma Heming Willis, a friend has said.

Tallulah Willis, the actor's daughter, wrote that a video clip of the moment made her "heart so freaking full."

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.

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.

Retired actor Bruce Willis was filmed warmly greeting LAPD officers on Thursday as he continues to battle dementia.

Bruce Willis retired from acting in 2022 and was then diagnosed with frontotemporal dementia. He's rarely been seen in public since then.

Bruce Willis made a rare public appearance to thank first responders tackling the ongoing Los Angeles fires. In a video posted by his wife, Emma Heming (46), the Die Hard star, who is battling dementia, was filmed shaking hands with LAPD responders and posing for a photo with them.

If that doesn’t warm your heart, I don’t know what will.