RecruitingBehavioural interventionExercise and Nutrition for Older Cancer Survivors and Their Support Person: The Vitality StudyThis research study will compare the impact of virtually supervised and unsupervised home-based exercise and diet programs on cognitive and physical function among cancer survivors and support persons. This study will involve a 6-month home-based virtually supervised or unsupervised exercise and diet intervention. The names of the study interventions involved in this study are: * Virtually supervised exercise and healthy diet care * Unsupervised exercise and healthy diet care