Your dementia risk is higher if your spouse has it - but it’s more than shared lifestyle
A large-scale study from Taiwan involving nearly one million adults suggests that individuals whose spouses have dementia are at a higher risk of developing the condition themselves. Researchers indicate that this correlation extends beyond shared lifestyle factors, warranting further investigation into environmental or biological links.
Why it matters
Identifying non-lifestyle risk factors for dementia could improve early screening and support strategies for aging couples.
Matt Bennett/Unsplash Your dementia risk is higher if your spouse has it – but it’s more than shared lifestyle Published: July 20, 2026 9:42pm EDT https://theconversation.com/your-dementia-risk-is-higher-if-your-spouse-has-it-but-its-more-than-shared-lifestyle-287878 https://theconversation.com/your-dementia-risk-is-higher-if-your-spouse-has-it-but-its-more-than-shared-lifestyle-287878 Link copied Share article Share article
Copy link Email Bluesky Facebook WhatsApp Messenger LinkedIn X (Twitter) Print article
Partners do not simply grow old together, they often grow more alike.
Decades of shared routines, environments and experiences leave couples with increasingly similar health profiles , a pattern long recognised for obesity , diabetes and heart disease and stroke .
A new nationwide study from Taiwan suggests the answer is yes – but not for the reason many headlines might imply.
In this study involving almost one million married adults, researchers found that when one spouse developed dementia, the other was significantly more likely to receive the same diagnosis.
This observation itself is not entirely new.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in