Changes in spinal fluid have been observed up to 25 years before people with a genetic predisposition for Alzheimer’s actually show signs of the disease.

A recent study examined people who have a genetic mutation inherited from their parents meaning they will develop Alzheimer’s disease before the age of 60.

Researchers said by looking at changes in people before they show clinical signs of the disease, they will be able to develop more targeted treatments and work towards preventing Alzheimer’s disease altogether.