Research suggests that taking a relatively low number of steps per day, potentially as few as 3,000, may help slow cognitive decline, with some studies indicating this could delay the onset of Alzheimer's disease. The exact number of steps and the extent of the benefit are not universally agreed upon, but several outlets report a positive correlation between daily step count and delayed cognitive decline. Walking at least 3,000 steps per day may have a beneficial effect on the brain, potentially delaying Alzheimer's symptoms.