People with Alzheimer's disease have a tendency to withdraw from all social connections (including family).
People with Alzheimer's disease may use the incorrect term to describe something, forget the word they wish to use, or keep saying the same thing again and over.
People with Alzheimer's disease may experience mood swings and personality changes. They can become melancholy, nervous, or perplexed.
These must be viewed in context, since many of them can be attributed to the natural ageing process. Typically, disease-related changes occur over time and are not one-time occurrences.
All of these changes (withdrawal from social activities, language issues, personality and mood changes) arise as a result of the disease's increasing destruction and death of brain cells.
Early identification of Alzheimer's disease and other dementias is critical because it allows people to investigate potential symptom-relieving treatments and plan ahead.