100,000 people under 65 have dementia: 15 factors increase the risk of the disease. Genetic factors (APOE4) Orthostatic hypotension depression Alcohol abuse stroke Low socioeconomic status diabetes Cardiovascular diseases Vitamin D deficiency Hearing impairment Social isolation High levels of C-reactive protein (CRP) Moderate alcohol consumption, higher education and stronger hand grip strength are mitigating factors.

However, healthy eating or cigarette consumption were not listed as risk factors. There is evidence that Alzheimer's, the most common form of dementia, may be transmitted via a specific hormone.