Andre is a 68-year-old grandfather who has been struggling with his memory lately. At first, he was simply forgetting an appointment from time to time or forgetting to take his morning vitamins. However, now his spouse and children have noticed that his forgetfulness is progressing. There have been moments where he forgot how to get home, couldn't remember his own phone number, or the names of his grandchildren. His family is worried he may have Alzheimer’s disease and they are not sure what to do.

Andre’s family decides to do some research about dementia and Alzheimer’s disease.
Which of the following statements is true?

Alzheimer’s disease is not related to dementia.
Alzheimer’s disease involves neuron damage and dementia does not.
Alzheimer’s disease is a form of dementia.
Dementia is a normal form of aging, but Alzheimer’s disease is not.