Shield your brain from dementia? (It may be possible…)

Posted on June 16, 2026 by Dr. Fred

If I sound like a broken record when it comes to modifiable risk factors, it’s because they matter.

I’ve said it before, and I’ll say it again: Most of the diseases that claim our lives stem directly from how we live. And when it comes to brain health, specifically… that truth is more important than ever.

A new study out of the U.K. Biobank found that adopting simple, healthy lifestyle behaviors may help protect your brain from dementia and other age-related diseases…

Even if you have a genetic or biological predisposition.

Researchers looked at the connection between lifestyle, telomere length, and risk of age-related brain conditions like dementia, stroke, and late-life depression.

Telomeres are protective caps on the ends of your chromosomes. They’re often compared to the plastic tips on your shoelaces. And as they shorten (which happens naturally with age), your risk of chronic disease goes up.

In this study, people with shorter leukocyte telomere length (LTL) had significantly higher risks of:

  • Dementia (19 percent)
  • Late-life depression (14 percent)
  • Stroke (8 percent)

But here’s the exciting part…

Among participants with shorter LTL who scored high on a lifestyle assessment called the Brain Care Score (BCS), those risks were dramatically reduced—if not eliminated entirely.

So, what counted as “brain-protective” habits in this study?

Nothing you haven’t heard from me before:

  • Following a healthy diet
  • Engaging in regular exercise
  • Getting good, quality sleep
  • Managing stress
  • Maintaining a healthy weight
  • Avoiding smoking and excessive alcohol intake
  • Staying socially engaged

In other words, simple, commonsense strategies that you can start prioritizing TODAY—regardless of age.

Because the truth is this: You have far more power over your health than you’ve been led to believe. And when it comes to your brain, it’s never too early—or too late—to start protecting it.

Source:

“Telomere Length Linked to Age-Related Brain Diseases.” Medscape, 02/12/2025. (medscape.com/viewarticle/telomere-length-linked-age-related-brain-diseases-2025a10003lt)