Alzheimer's is a disease that is usually developed in mid to late adulthood. It results in the decline of memory, and progresses. This is due to the destruction of nerve cells and neural connections.

In preclinical, memory loss tends to be greater for someone at that age.

Patients will ask repetitive statements and ask questions because they do not understand what was asked, often misplacing things.

Memory loss becomes much more prominent, and this becomes frustrating for patients. Issues of reading, organizing, writing and even speaking occur in this stage. Patients become easily agitated as well: throwing food at members, hitting and kicking them.

Disease has progressed to the point where Alzheimer patients cannot recognize family and loved ones, and are unable to communicate to them in some way.

Memory loss, forgetting how to do simple tasks, inability to problem solve, speech and writing problems, horrible judgement and bad hygiene.