What We Now Know About Dementia Prevention (And Why It's Less Scary Than You Think)

You’re at the kitchen table, mid-sentence, and the word you want — a word you’ve used a thousand times — just isn’t there. You wait. You pivot. You find a synonym and move on. But later, alone, you wonder.

That moment is familiar to almost every woman I hear from. And it’s exactly where this conversation needs to start. Not with statistics. Not with fear. With the quiet relief of knowing that researchers have spent the last two decades studying brains just like yours, and what they found is genuinely good news.

If you’ve been wondering where the line is between normal forgetting and something worth watching, I wrote about that distinction here — and it’s worth reading alongside this. But today we’re staying with the bigger picture: what we can actually do, and why “prevention” turns out to be a much gentler concept than the word implies.

The 45% Number That Changes Everything

Here’s what the research actually says: nearly half of all dementia cases may be preventable through lifestyle cha…