Exactly how many steps can help stave off Alzheimer's, according to scientists; Previous recommendations have been for people to do 10,000 steps a day to stay healthy but new research has come up with a different number

Byline: By, Jim Leffman & Elaine Blackburne Walking just 4,000 steps a day can be enough to keep the brain healthy and stave off Alzheimer's disease, according to scientists. Exercise [...]