Question: what are the risk factors for the most common causes of dementia?
Answer: Age. The risk of Alzheimer's disease, vascular dementia, and several other dementias goes up significantly with advancing age. Genetics/family history. ...  Smoking and alcohol use. ...  Atherosclerosis. ...  Cholesterol. ...  Plasma homocysteine. ...  Diabetes. ...  Mild cognitive impairment.