Aging causes physical and cognitive changes that influence how we interact with the world around us. As personal data becomes increasingly available from a variety of sources, older adults can use this information to better understand these changes and adapt. Our project explores information visualization as a tool to help older adults interpret and understand their own personal data. To test this concept, we created visualizations of a user's pointer performance metrics to help demystify problems in real-world mouse use. In a user study conducted with older adults with a range of computing experience, we learned that visualizations such as these can be a highly engaging information medium for this population. This paper presents our design process and recommendations for creating reflective visualizations for older adults.