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.
References. 1  Wolk DA, et al. Clinical features and diagnosis of Alzheimer disease. 2  Diagnosis of Alzheimer's disease and dementia. Alzheimer's Association. 3  About Alzheimer's disease: Diagnosis. National Institute on Aging. 4  Alzheimer's disease. National Institute of Health. 5  10 early signs and symptoms of Alzheimer's. Alzheimer's Association.