Dementia vs Normal Aging

Ever been asked what the difference is between normal aging and dementia? Mental changes that occur with normal aging involve the forgetting of details. One might forget someone's name or something that was served at a birthday party etc. Mental changes that occur with dementia involve forgetting entire events. One might forget that he/she went to the birthday party completely. Personality changes occur with early dementia and navigational skills become impaired (finding his/her way to and from the store etc).