With regard to lifestyle factors, here is some evidence to get you started:
Healthy lifestyle and the risk of Alzheimer dementia (PMC7455318)
> Compared to participants with 0 to 1 healthy lifestyle factor, the risk of Alzheimer dementia was 37% lower (pooled HR 0.63, 95% CI 0.47–0.84) in those with 2 to 3 healthy lifestyle factors and 60% lower (pooled HR 0.40, 95% CI 0.28–0.56) in those with 4 to 5 healthy lifestyle factors.
