The most common causes for dementia include Alzheimer’s disease. This disease causes the structure and chemistry of the brain to change resulting in the death of some brain cells, such as the memory centres of the brain.
Vascular dementia is a result of when the oxygen supply to the brain fails, and as a result, brain cells begin to die.
Fronto-temporal dementia is usually focused to the front of the brain resulting in alterations to personality and behaviour.
Dementia with Lewy Bodies, which gets its name from the tiny spherical structures that develop inside the nerve cells, which as a result of their presence leads to a degeneration of brain tissue.