Early: The first detectable signs of dementia are typically very mild, including short-term memory lapses, forgetting a word, or getting lost.
Middle: In the middle stage of the disease, cognitive challenges progress to the point that the individual struggles with independently performing activities of daily living.
Late: the last stage of dementia, that may take years to reach, involves a lack of response and recognition of both people and environment, as the body begins to shut down.