The study, published in the journal JAMA Neurology, identifies risk factors that are associated with a reduced risk of dementia in younger adults and a higher risk of developing the disease. Researchers have determined that the risk factors are: alcohol use, higher educational attainment and physical frailty, low socioeconomic status, apolipoprotein E status, alcohol use disorder, social isolation, vitamin D deficiency, high C-reactive protein levels, hearing loss, orthostatic hypotension, stroke, diabetes, heart disease, and depression.