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.
Alzheimer's disease is an irreversible and progressive disorder that damages and destroys brain cells, inducing memory loss and negatively impacting cognitive abilities, such as thinking skills and reasoning. There are two types of Alzheimer's disease: early-onset Alzheimer's: develops between the ages of 30 and 60.