Brain failure. Alzheimer's disease (ad), is one form of dementia that gradually gets worse over time. It affects memory, thinking, and behavior. You can get more information at www. Ncbi. Nlm. Nih. Gov.
Common dementia. Alzheimer's disease is the most common type of dementia. Memory problems, word finding problems, word substitutions errors, getting lost in places that are familiar are often early symptoms. Also forgetting how to use tools that you used to know how to use. Finally, trouble evaluating info and following plans happen later.
Memory loss. Alzheimer's disease is a disease that presents itself as a progressive loss in memory starting with short-term memory and then long-term memory. The definitive diagnosis is made at time of death by finding neurofibrillary tangles in the brain.