Early stage

 Forgetting recent conversations or events

 Minor changes in abilities and behaviour

 Repetition

Middle stage

 Needing some help with ADLs

 Wandering

 Loss of interest in other people

 Shuffling gait

Later stage

 Needing constant help with ADLs

 Forgetting names

 Complete loss of memory

 Inability to recognize familiar people, objects, or places

 Getting easily upset or aggressive

 Confusing night and day

 Confinement to bed or a wheelchair

 Difficulty in swallowing

 Loss of speech