As a dementia specialist, I can provide you with an overview of the seven stages of dementia as described by Dr. Barry Reisberg, which is a widely recognized staging system for Alzheimer's disease and other forms of dementia. It's important to note that not all individuals with dementia will progress through these stages in the same way or at the same rate. Stage 1: No Impairment During this stage, Alzheimer's disease is not detectable and no memory problems or other symptoms of dementia are evident. Stage 2: Very Mild Decline The individual may experience slight memory lapses, but these are not significant enough to be noticeable to others. Stage 3: Mild Decline At this stage, the person may have difficulty remembering recent events and may misplace items occasionally, but overall function is still relatively intact. Stage 4: Moderate Decline Memory loss becomes more noticeable, and the person may have trouble with complex tasks, such as managing finances or planning a meal. Stage 5: Moderately Severe Decline The individual requires assistance with many daily activities and may experience significant memory loss, including difficulty recognizing family members. Stage 6: Severe Decline At this stage, the person is dependent on others for most activities of daily living and may have difficulty speaking, recognizing people, and may exhibit personality and behavior changes. Stage 7: Very Severe Decline This is the final stage of dementia, where the person is completely dependent on caregivers for all aspects of care. They may lose the ability to communicate and may be bedridden. read more >>

Resiberg:Stage 1: No Impairment. During this stage, Alzheimer's disease is not detectable and no memory problems or other symptoms of dementia are evident.Stage 2: Very Mild Decline. ... Stage 3: Mild Decline. ... Stage 4: Moderate Decline. ... Stage 5: Moderately Severe Decline. ... Stage 6: Severe Decline. ... Stages 7: Very Severe Decline.read more >>