in a study (9/6) published in JAMA Neurology, researchers found that "people between the ages of 40 and 79 who took 9,826 steps per day were 50% less likely to develop dementia within seven years," and that "people who walked...at a pace over 40 steps a minute...were able to cut their risk of dementia by 57% with just 6,315 steps a day." Those who walked "at a very brisk pace of 112 steps per minute for 30 minutes a day" had the largest reduction in dementia risk.