Making odd statements or using the wrong words for certain items.
Not realizing they need to bathe or forgetting how to maintain good hygiene.
Repeating themselves or asking the same question over and over.
Misplacing objects or taking others' belongings.
Not recognizing you or remembering who they are.
Being convinced that a deceased loved one is still alive.
Hoarding objects, such as mail or even garbage.
Exhibiting paranoid behavior.
Becoming easily confused or agitated.