Shingles Vaccine Linked to Lower Risk of Heart Disease and Dementia

Interest in the possible benefits of the shingles vaccine beyond preventing shingles itself has been growing in recent years. Early studies hinted at connections between shingles and other serious health problems, including heart disease and dementia. Researchers began to wonder whether preventing shingles could also lower the risk of these conditions.

This question led to larger studies using newer vaccines like Shingrix, which is now widely used in the UK and internationally. Scientists set out to examine whether people vaccinated against shingles were less likely to suffer from heart attacks, strokes, or cognitive decline compared to those who were not vaccinated.

On August 25, 2026, ScienceDaily reported findings that older adults who received the shingles vaccine had a 24% lower risk of developing dementia over four years. This signaled a possible wider protective effect.

The next day, several major outlets published results from a study involving more than 70,000 participants aged 60 and older. Nature reported that men seemed to benefit especially from reduced risks of heart disease, heart failure, and stroke with the Shingrix vaccine. New Scientist and other outlets highlighted that the vaccine could cut the risk of stroke and heart failure in this group.

STAT News described the research as a 'natural experiment,' noting that the study was funded by Bloomberg Philanthropies and built on the earlier dementia findings. The Guardian and Time.news both cited an Oxford University study showing a 12% reduction in major cardiovascular events, including heart attacks and strokes, over three and a half years for those vaccinated with Shingrix.

Sky News and the Daily Mail emphasized that the vaccine's benefits could extend far beyond just shingles prevention, potentially saving thousands of lives each year in the UK. The Daily Mail also drew attention to a possible reduction in deaths from heart disease and dementia if more people received the vaccine.

There is now strong evidence from multiple large studies that the Shingrix shingles vaccine reduces the risk of heart attacks, strokes, and dementia in older adults. UK experts are urging eligible people to get vaccinated to gain these extra health benefits.

While the mechanism behind the vaccine's protective effect is still being studied, the data is convincing enough that public health officials are considering how best to encourage higher uptake among older adults.

Researchers are now focusing on understanding how the Shingrix vaccine lowers the risk of cardiovascular events and dementia. Further studies are expected to confirm these findings in other populations and explore whether the benefits last even longer. Health authorities in the UK and elsewhere may update their vaccination recommendations as more evidence emerges.