Because of your loved one’s memory loss, they could repeat the same phrase, question or task over and over again. While this behavior is not likely dangerous, it can be frustrating for you and other family members. Or puzzling for children, as some of you may discover.
You might notice that your loved one is going through the same actions from their prior work or interests, for example. This could indicate that they might be missing some structure in their life. Or this action could represent boredom. Discovering the causes of their behavior could help cut down on the repetitive actions.
Source: Confidence to Care