Shingles Vaccination May Lower Risk Of Dementia

WASHINGTON (AP) — A vaccination to prevent horribly painful shingles may offer an extra benefit: New research suggests it might lower the risk of dementia, too. There have long been hints that certain viruses increase risk for later-in-life dementia, including the virus that causes chickenpox. That virus never leaves the body, hiding in nerves to erupt later when the immune system wanes from illness or age — what’s called shingles. The new study tracked seniors in Wales and found shingles vaccination cut their risk of developing dementia over the next seven years by 20%. The study was published Wednesday in the journal Nature.