Support WBURAs the U.S. ages, dementia is on the rise. Here are ways to reduce your riskPlay03:54Download AudioAllison AubreyUpdated January 13, 2025 ShareAbout 40% of dementia cases could be delayed or prevented by addressing 14 modifiable risk factors, according to a Lancet commission report. (Getty Images)This article was originally published on November 25, 2024.