A historian challenges a labor-history fable. Timothy Messer-Kruse doesnât remember her name, but the question she asked in his college classroom a dozen years ago changed his career â and now it may revolutionize everything historians thought they knew about a hallowed event in the imagination of the American Left.
Though the effects of the disease are similar, there are two main types. 1  Early-onset Alzheimer's. This type happens to people who are younger than age 65. 2  Late-onset Alzheimer's. This is the most common form of the disease, which happens to people age 65 and older.
Here's the major difference between Alzheimerâs Disease and dementia â when an individual is diagnosed with dementia, they are diagnosed based on their symptoms without actually knowing what's behind the symptoms. In Alzheimerâs disease, the exact cause of the symptoms is understood. In addition, Alzheimer's disease is not reversible, whereas some types of dementia, such as those caused by nutritional problems or a drug interaction, can be reversed.