Bruce Willis has frontotemporal dementia. So did my dad
Bruce Willis attends the premiere of "Motherless Brooklyn" in New York City in 2019. - Angela Weiss/GETTY IMAGES NORTH AMERICA/TNS

Like the rest of the world, I learned Thursday that Bruce Willis — the man we all know from "Die Hard" and "Moonlighting" — has frontotemporal dementia. I caught my breath at the headline, but didn’t process the news until the quiet of night, as I was trying to fall asleep. Bruce Willis has frontotemporal dementia. Just like my dad. It is a big deal to me, because people don’t mention frontotemporal dementia very much. Only a small handful of people with dementia — just 2%, according to one estimate — have the frontotemporal kind, so at my monthly support group for caregivers of people with de...