A growing body of research is reshaping how we think about vaccines, and not just for preventing infections. The shingles vaccine, long recommended for older adults to prevent painful rashes, is now gaining attention for an unexpected benefit: reducing the risk of heart attacks. Recent studies suggest that people who receive the shingles vaccine may lower their cardiovascular risk by a striking margin. That’s a compelling finding in a world where heart disease remains the leading cause of death. For many readers, this raises an important question—could a simple preventive shot offer protection beyond what we’ve traditionally expected?
