Part of the brain may be 'dementia-proof', research suggests.
A study that looked at the vital organs of nine people who died from Alzheimer's disease found the sufferers produced proteins which protect against the disease in the brain region known as the cerebellum.
The cerebellum - which controls movement - was not damaged by the disease, unlike five other key regions of the brain.
It is thought the cerebellum undergoes a change at the beginning of Alzheimer's disease which could be the way of the body putting up its defences.
The researchers hope better understanding Alzheimer's onset will help scientists finally find a cure.