Are there stages in alzheimer?

Absolutely. Alzheimer disease can only be definitively diagnosed by a neuropathologist at the time of autopsy. Pathologically, there are six stages of Alzheimer's disease. Most older adults have early pathologic changes of Alzheimer's disease (stages I or ii), but they remain intellectually intact.
Yes. Http://www. Alz. Org/alzheimers_disease_stages_early alzheimer's shows forgetfulness which turns worst nd worst with time, and other symptoms but preserve language or speech, the symptoms get worst, they get paranoid, they may get aggressive at timeslate alzheimer's is characterized for complete dependence of activities of daily living, speech is abnormal (garbled)and pt may end up being bedbound.