Could a vaccine prevent dementia? Shingles shot data only getting stronger.

February 26, 2026
Could a vaccine prevent dementia? Shingles shot data only getting stronger.

Here's something that might just blow your mind — research suggests that a simple shingles vaccine could do more than protect against chickenpox. According to Beth Mole writing in Technology, studies are accumulating that show a link between getting the shingles shot and a reduced risk of dementia, including Alzheimer's. Now, here's where it gets interesting — these findings aren’t just about preventing a virus. A recent study highlighted by Mole points out that the vaccine might even slow down biological aging by lowering inflammation markers. So, what does this actually mean for you? Well, scientists like Eileen Crimmins from USC are suggesting that vaccines could be part of a broader strategy for healthy aging, not just fighting off infections. And get this — these insights are gaining strength despite ongoing debates around vaccines in politics and media. Honestly, the idea that a shot you might already get for another reason could help keep your mind sharp years down the line is pretty exciting. Keep an eye on this space; it’s possibly a game changer.

While lifesaving vaccines face a relentless onslaught from the Trump administration—with fervent anti-vaccine advocate Robert F. Kennedy Jr. leading the charge—scientific literature is building a wondrous story: A vaccine appears to prevent dementia, including Alzheimer's, and may even slow biological aging.

For years, study after study has noted that older adults vaccinated against shingles seemed to have a lower risk of dementia. A study last month suggested the same vaccine appears to slow biological aging, including lowering markers of inflammation.

"Our study adds to a growing body of work suggesting that vaccines may play a role in healthy aging strategies beyond solely preventing acute illness," study author Eileen Crimmins, of the University of Southern California, said.

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While lifesaving vaccines face a relentless onslaught from the Trump administration—with fervent anti-vaccine advocate Robert F. Kennedy Jr. leading the charge—scientific literature is building a wondrous story: A vaccine appears to prevent dementia, including Alzheimer's, and may even slow biological aging.

For years, study after study has noted that older adults vaccinated against shingles seemed to have a lower risk of dementia. A study last month suggested the same vaccine appears to slow biological aging, including lowering markers of inflammation.

"Our study adds to a growing body of work suggesting that vaccines may play a role in healthy aging strategies beyond solely preventing acute illness," study author Eileen Crimmins, of the University of Southern California, said.

Read full article

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Could a vaccine prevent dementia? Shingles shot data only getting stronger. | Speasy