Shingles vaccine might help protect your brain, study finds

Technology Dec 05, 2025

A new Stanford study hints that getting the shingles vaccine could do more than just stop a nasty rash—it might actually lower your risk of developing dementia.
Researchers looked at people in Wales and found those vaccinated had about a 20% lower chance of being diagnosed with dementia over the next seven years.

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The benefits didn't stop there—vaccinated folks were also less likely to die from dementia, suggesting the shot could slow how fast it progresses.
The shingles vaccine, already recommended for everyone 50 and older in the US, may also help your heart and overall health.
The researchers say more studies are needed to figure out exactly why this happens, but it's an encouraging sign for anyone thinking about getting vaccinated.