Vaccines can cut dementia risk by about 35%
Dementia
Prevention
Routine adult vaccines look like a low-cost longevity play through trained immunity, pathogen control, and vascular protection.
In another chapter of the “weird but makes sense” files: vaccines can cut dementia risk by about 35%.
Eric Topol’s write-up maps the links between routine vaccines and dementia risk [1].
Why might this happen?
- Trained immunity: vaccines reset innate immune cells, damping chronic inflammation that ages the brain and vasculature.
- Pathogen control: fewer viral reactivations (for example VZV) that can trigger neurodegeneration.
- Cardio assist: the same flu shot that lowers dementia also cuts heart-attack and stroke risk by about 30%, tightening the vascular-brain link.
Bottom line
Your standard adult schedule - annual flu, Shingrix at 50+, Tdap every 10 years, pneumococcal at 65+ [2] - is looking like a low-cost, multi-organ longevity play: protecting you today and for decades to come.
More of my reflections on preventing dementia:
- Up to 45% of dementia risk is modifiable with lifestyle actions.
- Lifestyle changes can even reverse Alzheimer’s molecular signatures back toward normal in some documented cases.
Know your risk, take small steps now, and your future self will thank you.