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Vaccines Slash Alzheimer's Risk by 55%
20 Jun
Summary
- High-dose flu vaccine linked to 55% lower Alzheimer's risk.
- Other vaccines also show association with reduced Alzheimer's.
- Inflammation reduction may explain vaccine-Alzheimer's link.
Emerging research indicates that staying up-to-date with vaccinations may lower the risk of developing Alzheimer's disease. A recent study published in Neurology revealed that individuals aged 65 and older who received a high-dose flu vaccine experienced a nearly 55% reduction in their risk of Alzheimer's over a two-year period. This finding builds on prior research by the same team.
Previous studies identified that standard flu vaccines were associated with a 40% lower Alzheimer's risk over four years. Additionally, vaccinations for tetanus, diphtheria, shingles, and pneumococcus were also linked to a decreased likelihood of developing the disease. Researchers hypothesize that these vaccines may reduce Alzheimer's risk by mitigating inflammation, a known factor in the disease's development.
While correlation does not equal causation, experts suggest that blunting the inflammatory response to infections could be key. The high-dose flu vaccine, containing four times the antigen of standard versions, is recommended for those 65 and older. Even standard-dose vaccines offer benefits.
Experts emphasize that while vaccination is a promising factor, it's one part of a broader brain-healthy lifestyle. Managing vascular risk factors, exercise, diet, social engagement, and treating sleep disorders remain crucial for long-term brain health.
