Regular readers know that #Alzheimer’s Disease and #dementia are two of my major considerations in #aging. To clarify: Dementia is not a disease but a group of different diseases characterized by the gradual worsening of cognitive abilities. Dementia is seen across all ethnic groups and increasingly so with advancing age. Among 65–69-year-olds, about 2 percent are afflicted, with this figure doubling for every five years of age. Alzheimer’s accounts for 60 to 80 percent of cases.