. . . "Learn what symptoms to look for at your job if you have early onset dementia.What???s the Difference Between Alzheimer&r...A comparison of the prevalence, progression, cause, symptoms and other factors of each of these two types of dementia.Early-Onset Alzheimer's Disease: Signs,...About 5% of those with Alzheimer's disease have early-onset Alzheimer's, which affects people younger than age 65." . .