Medical

Adult vaccinations

The shingles vaccine cut dementia risk 20% in a natural experiment; flu and pneumococcal vaccines also reduce cardiovascular events.

Impact 3/54/5· RCTs / large cohortsEffort: free, today

First step today

Check your vaccination record — when was your last tetanus?

How

After 50: shingles (Shingrix, 2 doses), yearly flu, pneumococcal after 65, tetanus-diphtheria-pertussis every 10 years, RSV after 75.

Evidence

Eyting 2025 Nature (Wales, n=282,541, natural experiment by birth date): shingles vaccination cut new dementia diagnoses by 20% over 7 years. Udell 2013 meta-analysis: flu vaccine –36% major cardiovascular events.

Goals

ImmunityBrain, memoryHealthy years

Related studies

Shingles vaccine cuts dementia 20% — a natural experiment · 2025

Sources

Eyting M et al. A natural experiment on the effect of herpes zoster vaccination on dementia. Nature (2025) ↗
Udell JA et al. Association between influenza vaccination and cardiovascular outcomes – meta-analysis. JAMA (2013) ↗

Last reviewed: 6 September 2026

This site is educational and does not replace medical advice. Start any supplement or drug only after consulting a doctor or pharmacist.