https://www.ncbi.nlm.nih.gov/pubmed/25681666 https://www.ncbi.nlm.nih.gov/pubmed/26086182
The major risk factor for dementia is ageing.
Approximately 30% of dementia cases may be attributed to seven key modifiable risk factors:
* Diabetes
* Midlife hypertension
* Low educational attainment
* Physical inactivity
* Smoking
* Obesity
* Depression