Surprising Study Finds Single People May Face Lower Risk of Dementia

For years, studies have shown that being married or partnered is linked to longer life and better overall health outcomes. But when it comes to dementia, new research is challenging this assumption.

A large U.S. study followed 24,107 adults aged 50 to 104 for nearly 20 years. Each year, participants underwent cognitive testing and medical assessments to track brain health. Over the 18-year follow-up period:

  • 20.1% developed dementia (4,853 cases total)
    • Alzheimer’s disease: 3,729
    • Lewy body dementia: 341
    • Vascular dementia: 246
    • Frontotemporal degeneration: 184

Key Finding:

Surprisingly, single individuals had a lower risk of developing dementia and experienced slower progression after diagnosis compared to married individuals.

Why might this be the case? Researchers suggest several possible reasons:

  • Community engagement – Single individuals may be more likely to maintain broader social networks and community ties.
  • Detection differences – Dementia symptoms may be more likely to go unnoticed or unreported in single people.
  • Lifestyle and independence – Living alone can encourage different patterns of activity, problem-solving, and independence that may protect brain function.

What does this mean for prevention?

This study shows that dementia prevention isn’t about marital status—it’s about maintaining social connections, mental stimulation, and healthy lifestyle habits.

At Orleans Family Health Clinic, we emphasize:

  • Regular check-ups and memory screening for early detection
  • Brain-healthy habits like exercise, diet, and lifelong learning
  • Social engagement through family, friends, or community programs

If you or a loved one are concerned about memory changes, book an appointment with our care team. Early action can make a meaningful difference.

Stay Connected with Orleans Family Health Clinic!

If you found this article helpful, don’t forget to like, share, and Follow to stay up to date on our latest health tips, updates, and wellness advice.

And follow us on social media

Disclaimer: The medical information on this site is provided as an information resource only and is not to be used or relied on for any diagnostic or treatment purposes. This information does not substitute for professional diagnosis and treatment. Please do not initiate, modify, or discontinue any treatment, medication, or supplement solely based on this information. Always seek the advice of your healthcare provider first. Full Disclaimer.

Share this post