When you are stuck behind an older woman at the supermarket, do you get impatient at her slow pace? Maybe she simply has all the time in the world and no longer must rush through each day as though she needs to put out a fire. Or maybe she has arthritis or another physical illness that is slowing her down. There’s nothing wrong with being more cautious about movements and slowing a bit as we age. However, for some people, a slow gait, particularly an uneven gait, could be a sign of brain disease such as Alzheimer’s.