According to a research presented during the American Academy of Neurology in Philadelphia, brisk walking may help women keep their brains young. Women who walk regularly are less likely to experience the memory loss and other cognitive declines in mental function that can come with aging.
In the study, they concluded that the least active women walked an average of about a half mile per week, while the most active group walked an average of nearly 18 miles per week. Walking included exercise too as part of daily activities.
Thereby, physical activity was measured by the number of blocks walked per week and also by the number of calories burnt in walking and other activities.