Individuals with prediabetes/type 2 diabetes are often advised to exercise to manage blood glucose levels. What is unclear is if the time of day in which people exercise matters. This is important as circadian biology suggests that blood glucose control may vary across the time of day. It is not clear if exercise at specific times of day would be better for glucose health. Here we look to compare whether exercise in the morning versus afternoon impacts blood glucose regulation and vascular health. Individuals with prediabetes/type 2 diabetes will be screened to see if they qualify and will be offered fitness, body composition, blood glucose, vascular health, and blood flow as well as energy metabolism measures to better understand health. Quality of life questionnaires will also be performed. Exercise training will be for 2 weeks. Tests before and after training will be done. For more information, e-mail our team at