Although memory loss is a typical symptom of Alzheimer's disease or other dementias, every diagnosis is different and memory and cognitive function will be effected according to the type of dementia, the degree to which it has progressed and the particular area(s) of the brain that have been affected. In addition to loss of memory, dementia may affect sight, speech, hearing, the use and understanding of language, judgement, problem solving, recognition, and muscle control. Incorporating an ongoing process of assessment of memory and cognitive abilities when creating a dementia care plan will enable the carer to adapt and tailor the level of care given in accordance with the changing needs and abilities of the person with Alzheimer's disease or dementia.