Activity keeps your brain sharper, even if you have dementia

People who move around more have sharper brains than couch potatoes, even well into old age and even if they already have some brain deterioration, researchers reported Wednesday.

The research helps answer a big question of whether exercise prevents dementia, or whether people with dementia-related damage to their brains move less because of that damage.

The new findings indicate that exercise and other activity helps preserve memory and brain function despite the various damage that leads to dementia, including hardened arteries and the brain-clogging plaques that are the hallmark of Alzheimer’s.

Full story at NBC News