METHODS Recruitment We will recruit seniors who are interested in a study of exercise and cognition through media such as newspaper ads, flyers, and posters in community and senior centres. Interested individuals be screened. The screening session will include the following: 1) MMSE ; 2) Montreal Cognitive Assessment (MoCA) ; and 4) Lawton and Brody Instrumental Activities of Daily Living Scale. Individual who meet the inclusion criteria will be invited to join the research study.