Early signs:
- Simple forgetfulness
- Losing items
- Problems performing tasks or activities that were previously done without effort
- Difficulty with learning new material
- One of the earliest signs
Upon progression of disease, these can be observed:
- Behavioral changes
- Difficulty performing basic tasks
- Such as dressing up or using the bathroom
- Forgetting of personal information
- Such as address, telephone number, or date of birth
- Difficulty understanding what is happening around oneself
- Forgetting to eat
- Resulting to pronounced weight loss
Late stages:
- Cannot recognize family members
- Marked problem in communication
- Require help for activities of daily living
- Unable to walk or sit up