Dementia is caused by a number of diseases that affect the brain. The most common is Alzheimer’s but diseases also include vascular dementia, dementia with Lewy bodies and Pick’s disease.
Different types of dementia affect the brain at different rates and in different ways, but other things like someone’s personal circumstance, the people around them and the environment in which they live, will affect their experience of dementia. Dementia progresses in a way that is unique to each individual.