It has been suggested that exercise can play an important role in dementia treatment.
A recent study by researchers at the University of Pittsburgh in Pennsylvania revealed that walking for five miles a week "protects the brain structure over ten years" and offers particular benefit to areas of the brain associated with memory and learning.
Professor June Andrews, director of the Dementia Services Development Centre at the University of Stirling, said that there were two main aspects of exercise which were likely to promote brain health.
Firstly she remarked: "Your brain is dependent on oxygen, and if it is already struggling because of Alzheimer's disease, then making sure that you have got a good blood supply to your brain with lots of oxygen in it is bound to be helpful."
However, Ms Andrews added that exercise has the side effect of providing mental stimulation, which is "very important" for people who are struggling with Alzheimer's and dementia