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.
Alzheimerâs Disease. Alzheimerâs Disease is the most common cause of dementia in people over 65, although the disease also occurs in people much younger. Alzheimerâs affects approximately 50 percent of those over 85. Presently, researchers cannot definitely say what causes the disease, and there is no cure. Symptoms differ from person to person, but declines in memory, thinking and ability to function gradually progress over of a period of years, ending in a severe loss of function. Ischemic Vascular Dementia (IVD).