Complete dependence for activities of daily living occurs in which stage of Alzheimer's disease?

In Alzheimer's disease, complete dependence for activities of daily living is characteristic of the severe stage. At this stage, individuals experience significant cognitive decline and loss of functional abilities, leading to an inability to perform basic self-care tasks such as bathing, dressing, eating, and using the toilet independently. The brain damage in this late stage severely impairs the individual's capacity to understand and complete tasks that they were previously able to manage.

In contrast, the early stage of Alzheimer's involves mild cognitive impairment where individuals may still perform daily activities with some assistance. The moderate stage sees increased difficulty in these activities, but individuals might retain some ability to manage certain tasks with support. Therefore, it is in the severe stage where full dependence on caregivers for daily living activities becomes evident, highlighting the progression of Alzheimer's disease and its impact on functional abilities.