There are three types of dementia caused by Alzheimer’s disease:
-Early onset Alzheimer’s. This rare form of AD strikes people younger than sixty-five years old and accounts for less than 10 percent of all AD diagnoses.
-Late-onset Alzheimer’s. This is by far the most common form of AD and occurs after age sixty-five.
-Familial Alzheimer’s disease (FAD). In this extremely rare type of AD (about 1 percent of cases), the causes are entirely hereditary and onset is usually in the forties.
Find out more about this book:The 10 Best Questions for Living with Alzheimer's: The Script You Need to Get the Best Care for Your Loved One