Numerous studies have demonstrated the role of physical activity in improving heart health for patients with type 2 diabetes. But whether exercising at a certain time of the day promises an added health bonus for this population is still largely unknown. Now, research published in Diabetes Care by Brigham and Women’s Hospital and Joslin Diabetes Center investigators, along with collaborators, reports a correlation between the timing of moderate-to-vigorous physical activity and cardiovascular fitness and health risks for individuals who have type 2 diabetes and obesity or overweight.