Research suggests the shingles vaccine may offer protection against dementia in older adults. The exact mechanism is not yet understood, but the nervous system is likely involved.

The varicella-zoster virus, which causes shingles, can lead to inflammation in the brain and long-term nerve pain. This virus can reactivate in people who have had chickenpox, leading to complications such as postherpetic neuralgia.

Further information on this topic is available from NBC 5 Dallas-Fort Worth, including insights from medical professionals like Dr. Jennifer Pauldurai, who specializes in brain health and memory disorders.